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If you would like to report a lost or found animal, please contact the Inland Valley Humane Society at 909-623-9777. When reporting, please provide a description of the animal along with any identification information it is wearing.
The City contracts with the Inland Valley Humane Society to address and/or enforce barking dog complaints per Diamond Bar Municipal Code Sections 6.08.1260 - 6.08.1320. Refer to the Code for information on how barking dog complaints are filed and investigated.
The beverage container recycling program began in California in 1987 as a way to assure the return for recycling of a greater percentage of the beverage containers sold in the state. It is estimated that more than 300 billion aluminum, glass, and plastic beverage containers have been recycled since.
Any product sold in a container that is not aluminum, glass, plastic, or bimetal is excluded from CRV. These include:
A recycling center is an operation certified by the Department to accept empty beverage containers and pay CRV to consumers. Recycling centers are operated by independent businesses, not the State of California.
Currently, state certified recycling centers pay a minimum of $1.65 CRV for aluminum cans; $1.31 CRV for clear PET plastic bottles; $0.58 CRV for HDPE plastic bottles (similar to the large water jugs); and $0.10 CRV for glass bottles. These CRV per pound rates are periodically adjusted, with new rates taking effect January 1 and July 1.
Yes, if the material is contaminated. Operators of certified recycling centers must inspect each load of containers to determine whether it is eligible for CRV. Recycling centers have the option to refuse to accept containers which, in their opinion, are excessively contaminated with dirt, moisture, or other foreign substances.
All individuals and businesses doing work within city limits, whether or not they have a physical structure in the city, are required to have a business license. This includes contractors, Internet and home-based businesses. Applications and renewals are processed online at City Hall. Fees are determined at the time of application submission. Contact the Planning Division at 909-839-7030.
All individuals and businesses doing work within city limits, whether or not they have a physical structure in the city, are required to have a business license. This includes contractors, internet and home-based businesses. Refer to the Business License webpage to download the business license packet or contact the Planning Division for more information by calling (909) 839-7030 or emailing email@example.com.
You may mail in the application along with a check to the address noted on the application, submit online through the Planning Inquiry form, or make an appointment with the Planning Division at www.diamondbarca.gov/appointment..
Once an application is received, a staff member will contact you if additional information is required; otherwise, the business license certificate and receipt will be sent to the email address provided on the application. Please allow a few days for processing.
The basic business license fee is $46.19 and $14 per year for renewals. Licenses requiring a one-time zoning clearance (PDF) are $137.40, and an additional fee of $346.19 per individual requiring a background check. Businesses that require background checks include, but are not limited to: acupressure and massage establishments, alarm companies, and sales of alcoholic beverages for offsite consumption. All fees are due when the application(s) are submitted, and are non-refundable and non-transferable.
Once you have provided your completed application with appropriate payment, it takes an average of 5 working days to process and issue a basic business license, and may take up to 30 days for those requiring a zoning clearance. Licenses requiring background check(s), the process may take up to 90 days. If for any reason your application is not approved, you will be notified within these time frames.
Applications may need to be reviewed by other departments and government agencies including, but not limited to:
You will be notified if additional permits, approvals, or fees are required.
This may be filed with any local newspaper, such as the Daily Bulletin, Highlander or San Gabriel Valley Tribune.
Yes. Licenses are not transferable. Relocation, expansion, change in owner, change in name, change in type of business, all require a new business license application and fee(s).
Business licenses are valid for one year and must be renewed annually. Any person who fails to renew their license on or before the renewal date shall be deemed to be operating without a license, and will be subject to delinquent fees that double each thirty-day period. Renewal fees are $14 for basic licenses. Additional fees may apply for those applications requiring substantial changes and/or background check.
It is the business owner’s responsibility to notify the Planning Division if you have closed your business. Your account will remain active until notification is received and you will be responsible for all accrued penalties.
In order to operate, maintain, or work in a massage establishment within Diamond, individuals must possess a current California Massage Therapy Council (CAMTC) certificate and CAMTC-issued identification card. Copies of both the certificate/renewal and ID card must be submitted to the City when applying for a massage establishment business license. A background investigation will be conducted as part of the application process. Additional information, including permit requirements and restrictions as well as requirements for the operation and maintenance of the massage establishment premises and equipment can be found on Sec. 5.08.070 of the Diamond Bar Municipal Code.
Elections for Diamond Bar City Council members are regularly scheduled during the month of November for even-numbered years. Any United States citizen may run for the Diamond Bar City Council as long as he or she is registered to vote in Diamond Bar. Council members are elected for terms of four years. For more information, contact the City Clerk's Office at 909-839-7010.
The City maintains an extensive online repository of public documents ranging from approved building permits to legislative position letters. If the document or record you are looking for is not available in this Online Records Library, you can search the public records archive or submit a Public Records Request.
There is no fee for making a public records request. However, a fee may apply to cover the cost of duplication if a physical copy of records is requested.
Every public hearing and official City meeting, including those held by the City Council, and the City's three Commissions - Planning, Traffic and Transportation, and Parks and Recreation - allow for members of the public to provide comments on any item on the agenda or subject matter within the jurisdiction of the City Council or Commission. All public comments received become part of a meeting's official record, also known as meeting minutes, and published in the following City Council/City Commission meeting's agenda packet. An archive of agenda packets is available online at http://diamondbarca.iqm2.com/Citizens/.
In 2001, the state legislature approved the California Voting Rights Act (CVRA), modifying burden of proof requirements contained in the federal Voting Rights Act of 1965 to make it easier for plaintiffs to challenge at-large voting systems. Federal protected classes include members of the same race, color, national origin, religion, sex/gender, age (over 40), and disability. The CVRA prohibits an agency from using at-large elections if it impairs the ability of a protected class to elect candidates of its choice or otherwise influence the outcome of an election. The CVRA includes the imposition of district-based elections by a court as a remedy to violations of the Act, and requires the government agency to pay all legal and court fees of a plaintiff that prevails in the courts.
A violation of the CVRA is established if it is shown that racially polarized voting occurred in City Council elections or in the election of candidates for other offices by the voters. Racially polarized voting occurs when there is a difference in the choice of candidates that are preferred by voters in a protected class versus the choice of candidates preferred by voters in the rest of the electorate.
Since incorporation in 1989, the City has used an “at-large” election system in which voters elect each of the five City Council Members to provide city-wide representation. A district-based election system is one in which the city is divided into geographic districts where voters in each district select one Council Member who resides in that district to represent them.
Yes. Instead of voting for all five members of the City Council, voters will vote for the one member only.
In a letter received January 13, 2022, Mr. Kevin Shenkman, counsel representing the Southwest Voter Registration Education Project (SVREP), alleged that the City’s at-large elections system violates the CVRA because it results in racially polarized voting that dilutes the impact of Latino voters. The letter demands that Diamond Bar voluntarily change its at-large system for electing City Council members to a district-based system to avoid litigation.
To succeed in the courts, a plaintiff must only show that racially polarized voting has occurred. To date, there is no established CVRA case law in which a public agency defendant has successfully prevailed on the merits. Thus, the majority of cities facing the threat of CVRA litigation have voluntarily transitioned to district-based elections citing the cost of legal defense and potential liability for significant attorney’s fees and settlement costs that have reached into the millions of dollars if the City’s legal defense is unsuccessful.
On February 17, 2022, the Diamond Bar City Council adopted a resolution stating its intent to voluntarily transition to district-based elections.
In 2016, the legislature amended Elections Code section 10010 to create a limited “safe harbor” timeline for agencies to transition from at-large to district elections. The amendment prevents a CVRA lawsuit from being filed if the agency adopts a Resolution of Intent to transition to district-based elections within 45 days of receiving a letter from a potential plaintiff. The agency then has 90 days to complete legal proceedings to make the transition. If all required actions are completed within the timeline, the agency’s potential liability for plaintiff’s attorney’s fees is capped at $30,000.
To transition to a district-based system, the City Council must adopt an ordinance requiring City Council members to be elected by district or by district with an elected mayor pursuant to Government Code section 34886. Per Government Code section 34886, the ordinance does not need to be submitted to the voters for approval, but must include a declaration that the change in election procedures is being made to further the purposes of the CVRA. Prior to the adoption of the ordinance, the City Council must establish district boundaries and determine which of the new districts will be subject to the first district elections. To do so, a minimum of five public hearings must be scheduled, as follows:
The “safe harbor” provisions of the Elections Code set strict, defined timelines. The City cannot deviate from the 90-day safe harbor timeline explained in the previous question without exposure to litigation and potentially significant costs.
All individuals and businesses doing work within city limits, whether or not they have a physical structure in the city, are required to have a business license. This includes contractors, internet and home-based businesses. Applications and renewals are processed online at City Hall. Fees are determined at the time of application submission. Contact the Planning Division at 909-839-7030.
Learn about the rules on the Garage and Yard Sales page.
If you are planning renovations or new construction in or around your property, chances are you will need to obtain a building permit. Taking out a permit before commencing your construction project not only keeps you in compliance with City law, but also protects you and your investment - be it a home or a business. For more information, contact the Building and Safety Division.
The Neighborhood Improvement Officers enforce all City Municipal Codes applicable in the community, including the provision against the open storage of junk. This code states that front and side yards shall be kept and maintained free and clear of:
If a property is found not in compliance with the code, a notice of violation is sent to the owner allowing a certain number of days to correct the violation. If a violation is not corrected within the time allowed, the owner may be fined. Any debris that is found, which is associated with the code violation, may be removed by a contractor at the property owner's expense. Failure to pay the fine will result in a lien being placed against the property. For more information, call 909-839-7030 or submit a request.
The City's Municipal Code states that exterior holiday lights and decorations must be removed within 30 days of installation, and no later than mid January. Besides contributing to blight, keeping holiday lights installed for an extended period of time creates the potential for a fire hazard because of their temporary-use nature. Homeowners found not to be in compliance will be issued a courtesy notice to correct violation within 10 days. Failing to remove the lights within the allotted time frame can result in a $100 fine.
Yes. All vehicles that are being repaired, dismantled, or incapable of operating are considered "inoperable" and must be stored out of public view, such as in the garage, when possible. It is considered a violation of the City Code if the vehicle or its parts become a hazard to the public health and safety. To report, contact the Neighborhood Improvement Division at 909-839-7030.
All residentially-zoned properties are eligible to construct one ADU and one Junior ADU (JADU), regardless of lot size. For studios and one-bedroom ADUs, 850 square feet is allowed and up to 1,000 square feet for 2 or more bedrooms. A JADU is created within the walls of a single-family residence and may share central systems and restrooms with the primary residence, and must contain a basic kitchen. JADUs are allowed up to 500 square feet. Refer to the Development Code Section 22.42.120 for additional ADU requirements - https://library.municode.com/ca/diamond_bar/codes/code_of_ordinances?nodeId=CICO_TIT22DECO_ARTIIISIPLGEDEST_CH22.42STSPLAUS_S22.42.110REACUSST.
Once you have plans ready, you may submit through the Planning inquiry form. No additional forms are required at this stage. Please allow a few days for the Planning and Building and Safety Divisions to review for completeness. Once authorization is received, a planner will instruct you on the next steps for formal building plan check submittal to the Building and Safety Division. There is a 15-working day turnaround once accepted by the Building and Safety Division. Every subsequent submittal is 10 working days. When all comments/corrections have been addressed, your permit will be issued for the ADU.
Short-term rentals, such as those listed on Airbnb and similar sites, are prohibited in all residential zones within Diamond Bar. The Diamond Bar Municipal Code defines a hotel or motel as “facilities with guest rooms or suites, provided with or without kitchen facilities, rented to the general public for transient lodging (less than 30 days).” By definition, a residence being rented to a tenant for fewer than 30 days is, therefore, classified as a hotel/motel, and is not a permissible use in residential zones pursuant to the City’s land use table. For more information, refer to Sec. 22.08.030. and Sec. 22.80.020. of the Diamond Bar Municipal Code.
The Diamond Bar Zoning Map designates existing land use classifications for each parcel located within the city. In addition to land use types (residential, commercial, and open space/conservation), the map also indicates the density of housing development allowed such as Low Medium Density Residential (RLM), Medium High Density Residential (RMH), and High Density Residential (RH). The Zoning Map is available online as part of the City’s GIS mapping database. To view the Zoning Map, click the Layers List icon on the top right corner and select “Zoning.” For more information, contact the Planning Division at (909) 839-7030 or firstname.lastname@example.org.
The Los Angeles County Development Authority (LACDA) offers two programs to assist first-time homebuyers: the Home Ownership Program (HOP) and the Mortgage Credit Certificate (MCC) Program.
HOP provides a second mortgage loan with an assistance amount of up to $85,000, or 20%, of the purchase price as well as assistance with the down payment and/or closing costs, whereas the MCC program offers a federal income tax credit of up to 20% of the annual interest paid on the mortgage loan.
City Council meetings are broadcast live on the first and third Tuesday of every month and are rebroadcast on Saturday, Sunday and the alternate Tuesday on Spectrum Charter cable channel 3 or Frontier FiOS channel 47. Meetings are also available for viewing online - live or archived - via the City's website.
Current employment opportunities are posted on the City's website, applications are only accepted online. If you have any questions, please call City Hall during regular office hours at 909-839-7017.
Property tax bills are issued by the County of Los Angeles Treasurer and Tax Collector. If you did not receive or misplaced your tax bill, you can request a duplicate online at https://ttc.lacounty.gov/request-duplicate-bill/.
Diamond Bar is served by two school district, Walnut Valley Unified School District (WVUSD) and Pomona Unified School District (PUSD). School districts are independent special-purpose governments regulated by the State of California. Grand Avenue is a rough delineation between the two districts, with areas north served by PUSD and areas south served by WVUSD.
An interactive map displaying California's school district service areas is available at https://gis.data.ca.gov/maps/CDEGIS::california-public-schools-and-districts-map/explore?location=37.062227%2C-119.500000%2C5.77
The Office of the Attorney General has limited, discretionary authority to intervene on behalf of homeowners who are denied certain rights under state and federal law. However, most homeowners associations (HOA) complaints are considered private matters that require the assistance of a private attorney. Examples of complaints not handled by the Office of the Attorney General include issues over services, amenities, or maintenance-related matters, poor management, misappropriation or negligent handling of corporate assets, parking and the towing of vehicles, dues, assessments and citations, foreclosure proceedings, and accountability for common interest assets, i.e., landscaping, pools and clubhouses. For additional information visit the AG website at https://oag.ca.gov/consumers/general/homeowner_assn.
The Diamond Bar Library, and the Pomona and Chino Hill post offices are all approved passport acceptance facilities. Confirm that they are open, and locate additional nearby locations by visiting https://tools.usps.com/rcas.htm. Additional information on how apply and track the status of your U.S. passport application, visit https://travel.state.gov/content/travel/en/passports/need-passport.html.
State law requires each city to adopt a comprehensive, long-term General Plan for its physical development. General Plans include several “elements” that address various topics. The Diamond Bar General Plan was comprehensively updated in 2019 and includes the following elements:
While most portions of General Plans typically have a time horizon of 20-25 years, State law requires that the Housing Element be updated in 8-year “cycles.” The City is currently preparing a Housing Element update for the 2021 to 2029 planning period, which is referred to as the “6th Housing Element cycle” in reference to the six required updates that have occurred since the comprehensive revision to State Housing Element law in 1980.
 California Government Code Sec. 65300 et seq.
 The Housing Element was last updated in 2014 and was not part of the 2019 General Plan update
The State Legislature has delegated to the California Department of Housing and Community Development (“HCD”) the authority to review Housing Elements and issue findings regarding the elements’ compliance with the law. When HCD issues a letter finding that the Housing Element is in substantial compliance with State law it is referred to as “certification” of the Housing Element.
Housing Element certification is important for two main reasons:
 California Government Code Sec. 65585
 California Government Code Sec. 65589.3.
 AB 101 of 2019
The major issues that must be addressed in the Housing Element are: 1) how City policies, plans and regulations help to meet the region’s housing needs for persons and families of all income levels; and 2) how City land use regulations accommodate the special housing needs of those with disabilities or other difficulties.
Reasonable accommodation for persons with disabilities
Emergency shelters and other facilities serving the homeless
Large (5+) families
 California Government Code Sec. 65583
 California Government Code Sec. 65583(a)(5)
By definition, housing is considered “affordable” when total housing cost, including utilities, is no more than 30% of a family’s gross income. State law describes five income categories, which are based on county median income as shown in Table 1.
Table 1. Household Income Categories
% of county median income
Up to 30%
Source: California Government Code Sec. 65584(f)
Affordable housing costs for all jurisdictions in Los Angeles County are determined based on these income categories as shown in Table 2. These incomes, rents and housing prices are based on a 4-person family and are adjusted for different family sizes.
Table 2. Income Categories and Affordable Housing Costs – Los Angeles County
Affordable Price (est.)
-Based on a family of 4 and 2020 State income limits
-30% of gross income for rent or principal, interest, taxes & insurance plus utility allowance
-10% down payment, 3.75% interest, 1.25% taxes & insurance, $300 HOA dues
* For-sale affordable housing is typically at the moderate-income level
Source: Cal. HCD; JHD Planning LLC
Each California city is required to plan for new housing to accommodate a share of regional needs. The Regional Housing Needs Assessment (“RHNA”) is the process established in State law by which housing needs are determined.
Prior to each planning cycle the total new housing need for each region of California is determined by HCD based upon economic and demographic trends, existing housing problems such as overcrowding and overpayment, and additional housing needed to ensure reasonable vacancy rates and replace units lost due to demolition or natural disasters.
Diamond Bar is located within the Southern California Association of Governments (“SCAG”) region, which includes Los Angeles, Orange, Riverside, San Bernardino, Imperial and Ventura counties. The total housing need for the SCAG region is distributed to cities and counties by SCAG based upon objectives and criteria established in State law.
In 2019 HCD determined that the total new housing need for the entire SCAG region in the 6th Housing Element cycle is 1,341,827 units. SCAG is currently finalizing the RHNA plan for the 6th cycle, which must fully allocate the total RHNA to jurisdictions in the SCAG region. SCAG expects to adopt the final RHNA plan by February 2021.
The RHNA also distributes each jurisdiction’s total housing need into four income categories (the extremely-low and very-low categories are combined for RHNA purposes). Diamond Bar’s preliminary 6th cycle RHNA allocation by income category is shown in Table 3.
Table 3. Draft 6th RHNA by Income Category – Diamond Bar
Extremely Low + Very Low
Source: SCAG, 3/5/2020
 California Government Code Sec. 65584 et seq.
 California Government Code Sec. 65584(d)
The RHNA allocation identifies the amount of additional housing a jurisdiction would need in order to have enough housing at all price levels to fully accommodate its assigned share projected growth over the 8-year planning period. The RHNA is a planning requirement based upon housing need, not a construction quota or mandate. Jurisdictions are not required to build housing or issue permits to achieve their RHNA allocations, but some provisions of State law establish specific requirements when housing production falls short of RHNA allocations. One such requirement is streamlined review and approval of housing development applications that meet specific standards. Other than requirements for streamlined permit processing, there are currently no legal or financial penalties imposed on cities for failing to achieve their RHNA allocations.
 California Government Code Sec. 65913.4 (SB 35 of 2017)
The Housing Element must providean evaluation of the city’s capacity for additional housing based on land usepatterns, development regulations, other development constraints (such asinfrastructure availability and environmental conditions) and real estatemarket trends. The analysis must be prepared at a parcel-specific level ofdetail and identify properties (or “sites”) where additional housing could bebuilt consistent with City regulations. This evaluation is referred to as the“sites analysis” and State law requires the analysis to demonstrate that thecity has adequate capacity to fully accommodate its RHNA allocation in eachincome category. If the sites analysis does not demonstrate that adequatecapacity exists to fully accommodate the RHNA, the Housing Element must describewhat steps will be taken to increase capacity commensurate with the RHNA –typically through amendments to land use and zoning regulations that couldfacilitate additional housing development. Such amendments typically includeincreasing the allowable residential density or allowing housing to be built inareas that are currently restricted to only non-residential land uses.
Diamond Bar’s new General Plan,adopted in December 2019, estimates that up to 3,750 new housing units could bebuilt in the city by 2040, depending on market conditions. It is expected thatmuch of this growth would occur within the Town Center Mixed Use, NeighborhoodMixed Use, Transit Oriented Development and Community Core Overlay focus areas,while most existing residential neighborhoods will experience less growth andchange. While the General Plan identifies potential for significantly more newhousing than the draft 6th RHNA allocation of 2,514 units, theHousing Element must demonstrate that realistic capacity exists for the amountof new housing in each income category to be built during the 2021-2029 planningperiod based on zoning, site conditions and market trends. This analysis isexpected to be the primary focus of the Housing Element update.
State housing laws are based on the premise that every city has an obligation to accommodate a range of housing types for persons at all income levels. Every community is dependent on a variety of low- and moderate-income workers in jobs such as landscaping, building maintenance, child and elder care, medical technicians, personal services, clerical support and retail trade. While the existing housing stock serves the needs of many residents, market rents and prices are higher than some families can afford. In addition, low-wage jobs have increased at a much faster rate than affordable housing is being built.
While cities are not required to build new housing, they must ensure that their land use regulations encourage a full range of housing types. Rental apartments typically provide the majority of affordable housing, but other types of housing such as accessory dwelling units (ADUs) can also help to address this need. Various governmental programs provide funding assistance for affordable housing, but if a city’s development regulations are too restrictive, affordable housing may be infeasible and the housing needs of the local workforce will be shifted to other cities.
 “Accessory dwelling unit” means an attached or a detached residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the single-family or multifamily dwelling is or will be situated. (Government Code Sec. 65852.2(j)(1)
SCAG’s 6th cycle RHNA allocation for the entire 6-county region is 1,341,827 units compared to 412,137 units in the 5th cycle. There are two main reasons why the 6th RHNA allocation is so much higher than the 5th cycle.
First, the 5th cycle RHNA allocation was established in 2012 while the severe economic effects of the “Great Recession” were discouraging growth. As a result, the 5th RHNA was uncharacteristically low. For comparison, SCAG’s 4th cycle (2006-2013) RHNA allocation was approximately 700,000 housing units.
Second, for the 6th cycle the State made a major modification to the process for determining RHNA allocations. In prior RHNA cycles, total housing need was based only on projected population growth. However, for the 6th RHNA cycle the State added existing need to the total RHNA calculation. Existing need includes households that are currently overcrowded (defined as more than one person per room) or are overpaying for housing (defined as more than 30% of gross income).
The total 6th cycle RHNA allocation for the SCAG region is comprised of the sum of existing need and projected need, as follows:
Existing need: 577,422 units \ Projected need: 764,405 units
Total need: 1,341,827 units
As seen from this breakdown, if existing need were excluded (as was the case in prior RHNA cycles) the total need would be similar to the 4th cycle RHNA.
With regard to jurisdictional RHNA allocations, the methodology adopted by SCAG for the 6th cycle places greater emphasis on the proximity of jobs and public transit rather than vacant developable land. As a result, the urbanized areas of Los Angeles and Orange counties are assigned much higher housing need as compared to prior cycles even though they generally have much less vacant land than inland areas.
Diamond Bar’s RHNA allocation in the 5th cycle was 1,146 units; therefore, the draft 6th cycle allocation of 2,514 units is about 2.2 times the prior cycle. By comparison, SCAG’s total 6th RHNA allocation is 3.3 times the 5th cycle total.
The City's Information Systems Department uses a bid process for hardware and software purchases. Learn more and sign up to be notified of all bid opportunities by visiting www.diamondbarca.gov/bids.
Effective July 1, 2020 - AB 827 mandates food service establishments provide customers with bins for three types of waste generated from items purchased and consumed on site – food scraps, recyclables, and trash.
AB 827 applies only to limited-service food establishments such as fast-food restaurants where customers order and pay at the counter and clear their own tables after eating. Full-service restaurants are exempt from this law since they typically have staff separating food waste after clearing tables.
Full-service restaurants are exempt if they they have wait staff and/or kitchen staff responsible for escorting diners to their table, taking their order, delivering their food to their table, bringing their bill or helping them process their payment, and clearing their table after they leave. Bins for employees to sort food waste must be labeled, visible, and readily accessible.
Organic waste bins or containers must be visible and easily accessible to employees and customers, they must be labeled, and they must be placed adjacent to each trash can (restroom waste bins are excluded). There is no minimum number of bins required.
To reduce greenhouse emissions by diverting commercial and multi-family residential organic waste through organics recycling.
Organic waste, as defined in AB 1826, is food waste, green waste, landscape and pruning waste, nonhazardous wood waste, and food-soiled paper.
Composting, mulching, anaerobic digestion, and rendering are examples of ways organic material is processed to create a variety of valuable products.
Permits for garage or yard sales are not required, but residents are asked to hold no more than two per year. Advertising signs may not be posted in the public right-of-way (for example on street signs, street trees, traffic signals, streetlight poles, or inside road medians). Residents may advertise through local publications or by asking neighbors to post signs on their private property. Signs shall not exceed three square feet in area and may only be displayed during the time of the sale. The signs shall be promptly removed at the end of the sale.
The City's Municipal Code states that exterior holiday lights and decorations must be removed within 30 days of installation, and no later than mid January.
Besides contributing to blight, keeping holiday lights installed for an extended period of time creates the potential for a fire hazard because of their temporary-use nature.
Homeowners found not to be in compliance will be issued a courtesy notice to correct violation within 10 days. Failing to remove the lights within the allotted time frame can result in a $100 fine.
Yes. All vehicles that are being repaired, dismantled, or incapable of operating are considered "inoperable" and must be stored out of public view, such as in the garage, when possible. It is considered a violation of the City Code if the vehicle or its parts become a hazard to the public health and safety.
The Neighborhood Improvement Officers enforce all City Municipal Codes applicable in the community, including the provision against the open storage of junk. This code states that front and side yards shall be kept and maintained free and clear of all construction and automotive materials or parts, trash, refuse, debris, inoperative motor vehicles, camper shells, discarded or broken materials, appliances, furniture, junk, equipment or similar materials.
If a property is found not in compliance with the code, a notice of violation is sent to the owner allowing a certain number of days to correct the violation. If a violation is not corrected within the time allowed, the owner may be fined. Any debris that is found, which is associated with the code violation, may be removed by a contractor at the property owner's expense. Failure to pay the fine will result in a lien being placed against the property.
Contact the Neighborhood Improvement Officer at 909-839-7030.
Shopping carts are private property and provided to shoppers as a customer service. Removing them from their respective store parking lot is illegal. Also, carts left on sidewalks or streets create visual blight and pose hazards to motorists, pedestrians, and bicyclists. This makes them a violation of 12.04.140 of the City's Municipal Code that prohibits encroachment within public streets and sidewalks. Report stray shopping carts by completing a request online or calling (888) 992-4778.
Yes. All vehicles that are being repaired, dismantled, or incapable of operating are considered "inoperable" and must be stored out of public view, such as in the garage, when possible. It is considered a violation of the City Code if the vehicle or its parts become a hazard to the public health and safety. To report, contact the Neighborhood Improvement Division at 909.839.7030.
The City’s Neighborhood Improvement Officers enforce all the municipal codes applicable in the community. If an Officer determines that a property is not in compliance , a notice of violation is sent to the owner allowing a certain number of days to correct the violation. If a violation is not corrected within the time allowed, the owner may receive a citation and fine. Any action that is taken in association with correcting the violation will be charged to the property owner. Contact the Neighborhood Improvement Division at 909-839-7030.
By law, you have the right to trim tree branches that extend into your property line. However, it is good practice to bring up the issue with your neighbor first. Give them a chance to take care of the trimming themselves, and/or offer to do it if they prefer.
Keep in mind that California has very strict laws regarding tree trimming. Under section 3346 of the California Civil Code, a person may not cut or remove any part of a tree that does not overhang their property. If you cause the tree to die or cause so much damage that its value is destroyed, you may be held financially responsible. Furthermore, certain trees such as the native oak, walnut, sycamore and willow are protected by Diamond Bar ordinance, even if they are on private property. If the pruning is extensive, you need to first obtain a permit. Refer to Chapter 22.38 of Diamond Bar Municipal Code for more information on tree preservation and protection.
City parks are open one-half hour before sunrise and close one-half hour after sunset, or until 10 p.m. for most lighted facilities, with the exception of Pantera Park lighted fields and courts, which close at and 9 p.m.
Tennis and pickleball courts are open on a first-come, first-served basis and cannot be reserved for private parties.
Pantera Park and Ronald Reagan Park both have lighted basketball and tennis courts. Maple Hill Park has a lighted tennis court. These lighted courts are available for public use every day one-half hour before sunrise and until 10 p.m. For more information, visit https://www.diamondbarca.gov/241/Parks-Facilities.
The Grand View Ball Room can accommodate approximately 438 persons for dining and approximately 952 theater style. The meeting rooms can accommodate up to 66 for dining and up to 200 for theater style seating. Room capacities can decrease/fluctuate due to the addition of a dance floor, buffet tables, gift tables, etc.
Residents and Diamond Bar based non-profits can reserve rooms up to 24 months in advance and non-residents and businesses can reserve rooms up to 20 months in advance.
First, have some basic information ready such as number of guests, possible dates, and room desired. Next, call the Center at 909-839-7065 and speak with a coordinator to make an appointment to reserve a day. Your reservation will be confirmed once you have submitted an application, paid a deposit and signed a contract.
Yes, alcohol can be served at your event from a bar by some 21 years old or older. For more information, contact the venue at 909-839-7065.
The State of California Department of Alcoholic Beverage Control issues permits that give permission to sell alcohol. Non-Profit Organizations wishing to sell alcohol need a one-day permit. This can be obtained through Alcohol Beverage Control. Private Parties i.e. weddings, anniversaries, birthdays, or anyone other than a non-profit organization shall not sell alcohol on their own.
If a private party wishes to sell alcohol, they must arrange this through a licensed caterer. The caterer must have a license obtained from the State of California Department of Alcoholic Beverage Control which enables the caterer to sell beer, wine and distilled spirits (hard liquor). If the caterer does not have this license, the private party cannot sell alcohol. No exceptions. It is illegal for a private party to sell alcohol.
Tea lights in sturdy votive holders are the only candles allowed at the Diamond Bar Center. A free candle permit is required and may be obtained by contacting facility staff at 909-839-7065.
All users of the facility shall procure and maintain, at their own expense and for the duration of the event covered, comprehensive general liability and property damage liability insurance, against all claims for injuries against persons or damages to property which may arise from or in connection with the use of the facility by the user, its agents, representatives or employees in the amount of $1,000,000, combined single limit.
The Center requires security at events where there will be alcohol. Security must be present from the start of service of alcohol through the clean up hour. Alcohol can be served for a maximum of five hours. Cost of security is the responsibility of the user. Security is also required at high school formal events.
There are multiple ways to register for recreation classes, activities or programs. The easiest and most convenient way is online at http://www.diamondbarca.gov/recregister.
You can also register in person at the Diamond Bar Center, located at 1600 Grand Avenue, during regular business hours of Monday through Thursday 7:30 a.m. to 5:30 p.m. or Friday 7:30 a.m. to 4:30 p.m. Walk-ins are welcome, but appointments are recommended and can be made online at www.diamondbarca.gov/appointment.
Alternatively, you can complete the registration form and return it by mail to City of Diamond Bar, Attn: Recreation Department, 21810 Copley Drive, Diamond Bar, CA 91765, or stop by the Diamond Bar Center, 1600 Grand Avenue, any time between a.m. to noon Monday-Saturday and deposit your completed registration form in a drop box located near the front entrance.
If mailing or dropping off your registration form, be sure to include payment (personal check, cashier’s check or money order made payable to City of Diamond Bar) and release of liability waiver.
Tennis court lights are activated from dusk to 10 p.m.
All businesses doing work within city limits, whether or not they have a physical address in the city, are required to have a business license, including out-of-city contractors and gardeners. Home-based businesses in Diamond Bar are also required to have a business license. Refer to the Business License page to download a business license packet, or contact the Planning Division for more information.
Before applying for a business license or signing a lease, please verify that a location of interest is zoned appropriately for your proposed business. For instructions on how to find a property’s zoning designation, refer to Question 2 or contact the Planning Division. Certain businesses will require other approvals such as a Conditional Use Permit (CUP) and/or background checks before a business license can be granted.
You may submit your business license application, along with payment, via mail, online, or in person by making an appointment with the Planning Division.
You can obtain or verify your property's zoning information online by visiting the City's interactive GIS map and searching by street address or by Assessor’s Parcel Number (APN). You can also obtain zoning information by contacting the Planning Division by phone at (909) 839-7030 or emailing us at email@example.com. A site address or APN will be needed for any of these options.
After looking up the zoning, refer to the Land Use Table in Development Code Section 22.08.030 for residential properties and Development Code Section 22.10.030 for commercial, office and industrial properties. Uses listed with a “P” are permitted outright; uses listed with a “CUP” require approval of a conditional use permit; and a dash ( - ) means that the use is not permitted in that zoning designation. Contact the Planning Division for CUP application requirements.
A CUP is a special permit that allows a business or property owner to engage in a certain type of land use, so long as it complies with specific conditions. When reviewing a CUP, consideration is given to the location, design, configuration, operational characteristics and potential impacts to determine whether or not the proposed use will pose a detriment to the public health, safety and welfare. All CUP requests require a public hearing before the Planning Commission, which has the authority to approve or deny such requests. When a CUP is approved, it runs with the land and all conditions placed on the CUP are binding on all successors in interest.
Signs require Planning Division approval and may require a building permit. Sign regulations are based on building types, such as stand-alone or multi-tenant buildings, and other locational criteria. Refer to Development Code Section 22.36.130 for general sign standards.
Please contact the Planning Division to check if a Comprehensive Sign Program applies to your business or building, which may further regulate the size, location, colors, and materials of your signs. You obtain additional information by calling or visiting the Planning Division, or by completing an online Planning inquiry form.
There are different types of temporary signs for businesses including special event, promotional/grand opening, and business identification prior to the installation of a permanent sign. Refer to Development Code Section 22.36.120(f) for temporary sign standards.
Please submit a Uniform Application, a site plan or photograph of the proposed temporary sign location, and a sketch of the sign that includes enough detail to show the size, relationship, and location of the temporary sign in relation to the building. Photographs may be submitted in-lieu of the drawing. Please bring in the banner/sign to City Hall when applying to the Planning Division so that a validation sticker may be placed on it.
You may find approximate locations of your property lines on Diamond Bar’s GIS Parcel Data Map or you may obtain a copy of the parcel map from the L.A. County Assessor’s Office website. However, the exact location of your property lines can only be verified by a licensed surveyor. The City cannot recommend any specific surveyor or survey company. You can search for California-licensed professional engineers and land surveyors by visiting the California Department of Consumer Affairs website.
Freestanding walls and fences do not require a building permit, but still require Planning Division approval through an over-the-counter application called a Zoning Clearance.
Please submit a Uniform Application, a site plan (example) showing property line dimensions, location and details of the wall/fence such as material, height, and color of the proposed wall/fence.
If the wall/fence is on a shared property line, please obtain authorization from the neighbor on the “Fence, Wall & Hedges Signature form.”
The purpose of a retaining wall is to hold back soil, typically at the base of a slope. Approvals or permits from the Building and Safety Division and the Public Works/Engineering Department may also be required depending on wall height and site conditions. In most cases, retaining walls that are not over three feet in height measured from the bottom of the footing to the top of the wall do not require a building permit. Refer to Development Code Chapter 22.20 and Section 22.22.080 (b)(7) for general height requirements for retaining walls.
Contact the Planning Division for initial inquiries and more information by submitting online through the Planning inquiry form.
If the storage shed is less than 220 square feet, it may be placed five feet from the property line or buildable pad/edge of descending slope. If 220 square feet or larger, setbacks shall be the same as required for the main structure. Refer to Development Code Section 22.08.040 for setback requirements for the main structure, or contact the Planning Division. The design of the storage shed shall be compatible with the main structure. Storage sheds that are less than 120 square feet and eight feet in height do not require a building permit, but still require Planning Division approval through an over-the-counter application called a Zoning Clearance. Please submit a Uniform Application, a site plan (example) showing property line dimensions, location and details such as building material, height, and color of the storage shed.
A setback is the distance by which a structure, parking area or other development feature must be separated from a lot line, other structure or development feature, or street centerline. Refer to Development Code Section 22.16.090 (2) for more details on how to measure setbacks.
All patio covers require Planning Division approval through an over-the-counter application called a Zoning Clearance. Please submit a Uniform Application, a site plan (example) showing property line dimensions, location, and details such as building material, height, and color(s) of the proposed patio cover. Refer to Development Code Section 22.42.110 for setback, height, design, and lot coverage requirements.
Freestanding patio covers and gazebos not exceeding 120 square feet (roof area) are exempt from building permits, but still must obtain Planning Division approval and comply with Development Code Section 22.42.110 for setback, height, design, and lot coverage requirements. Any patio cover exceeding 120 square feet and any patio cover attached to the house requires a building permit.
You may contact the Planning Division with initial inquiries and more information by submitting online through the Planning inquiry form.
Most single-family properties can accommodate additions. The development criteria are based upon the zoning designation of your property. You can obtain or verify your property's zoning information online by visiting the City's interactive GIS map and searching by street address or by Assessor’s Parcel Number (APN). When these development standards are applied to your property, they will determine the maximum size and configuration of the home on your property. Refer to Development Code Section 22.08.040 for development standards.
Some second-story additions, and all additions that increase the size of the house by more than 50% require Planning Commission approval. Contact the Planning Division for initial inquiries and more information by submitting online through the Planning inquiry form or by making an appointment with the Planning Division.
All residential properties are allowed one ADU of at least 800 square feet. Depending on lot size and capacity, an ADU may be as large as 1,000 square feet. In addition to an ADU, single-family residences may also have a Junior Accessory Dwelling Unit (JADU). A JADU is created within the walls of a single-family residence and may share restrooms with the primary residence, and must contain a basic kitchen. JADUs are allowed up to 500 square feet. Please visit Development Code Section 22.42.120 for additional ADU requirements.
Once you have plans ready, you may submit through the Planning inquiry form. No additional forms are required at this stage. Please allow a few days for the Planning and Building and Safety Divisions to review for completeness. Once authorization is received, a planner will assist you on the next steps for formal building plan check submittal to the Building and Safety Division. There is a 15-working day turnaround once accepted by the Building and Safety Division. Every subsequent submittal is 10 working days. When all comments/corrections have been addressed, your permit will be issued for the ADU.
Yards and setback areas shall be landscaped with lawn, trees, shrubs, or other plant material, and shall be permanently maintained in a neat and orderly manner and substantially free of weeds, debris and dead, diseased or dying vegetation and broken or defective decorative elements of the landscaped area. Foliage in landscaped areas shall be mowed, groomed, trimmed, pruned and adequately watered so as to maintain healthy growing conditions and not detract from the appearance of the immediate neighborhood. Irrigation systems shall be maintained to prevent public health or safety hazards.
If you are proposing to modify your front yard with drought-tolerant landscaping, Planning Division approval through an over-the-counter application called a Zoning Clearance is required. Please submit a Uniform Application, a site plan (example) showing property line dimensions, details and location of the proposed landscape/decorative hardscape improvements (e.g., quantity and species of all drought tolerant plants, shrubs, trees, and decorative hardscape areas).
For a list of drought tolerant landscaping, refer to the CAL-IPC website and the L.A. County Drought Tolerant Handbook for some ideas. https://www.cal-ipc.org/
Store your bins out of public view (or screened) at any time with the exception of your designated trash day. All bins shall be relocated from the place of collection before 10 p.m. on your trash day.
No, it is illegal to possess, transport, discharge, or sell fireworks within the city of Diamond Bar. For details, view the Diamond Bar Municipal Code Chapter 16.04
All trash cans must be kept out of public view at all times. (Exception will be made on the evening prior to, and/or the day of your trash pick-up.) Rear yard storage of trash receptacles shall be screened by approved walls or fences from view of neighboring property, public and private streets, and public and private right-of-way.
For bulky item pickup, contact your waste hauler. Single family residences may contact Waste Management at 909-599-1274 and multi-family residences may contact Valley Vista at 800-442-6454.
If the tree is planted on public property, a work order can be generated by submitting an online request through the City’s Report a Concern portal. Once received, City staff will inspect the tree to determine if it meets the criteria for trimming. Inspection findings will be shared with the reporting individual. The City does not maintain backyard trees or trees on private property.
Water leaks on private property such as shopping centers or multi-family complexes are the property owner’s responsibility, and can be reported to the Walnut Valley Water District at (909) 595-7554. If the water leak is occurring in a city park, street median, or public slope, notify the City’s Public Works Department by calling (909) 839-7060.
Maintenance of the city’s storm drains fall under the purview of the Public Works Department. If you accidentally drop your keys or other object in a storm drain inlet and they are within view, you can inquire with the Public Works staff for retrieval assistance by calling (909) 839-7060.
In addition to organics recycling, SB 1383 also require businesses to implement an Edible Food program to prevent throwing out "edible food".
SB 1383 regulations apply to all persons and entities that generate organic materials, such as food scraps and plant trimmings. Everyone is required to divert their organic materials from the garbage. In addition, certain entities that provide food will be required to donate their excess food to feed people.
Commercial entities and education agencies may be exempted from some or all of the requirements if they can provide documentation or evidence that shows minimal organic material is being generated or if their premises lack adequate space to fit all three containers (garbage, recycling, and organics). For more details, visit: https://calrecycle.ca.gov/organics/slcp/waivers.
As the most aggressive waste reduction law to be adopted in California in the past three decades, SB 1383 includes significant penalties for non-compliance including monetary penalties. Penalty amounts vary depending on the jurisdiction and extent of non-compliance, but the base penalties shall fall within the ranges listed below.
Report for Reward is a City of Diamond Bar program that offers individuals financial incentive of up to $500 for providing information leading to the arrest of a person(s) who damaged property as a result of a realized (or attempted) residential or vehicular burglary within Diamond Bar city limits.
Report for Reward was established on November 15, 2013 after being approved by the Diamond Bar City Council – by way of Ordinance No. 08(2013) – during its regular meeting of October 1, 2013.
Ordinance Number 08(2013) is now part of the Diamond Bar City Municipal Code – Chapter 9.02 entitled: “Reward for Crime Information.” The City’s Municipal Code is available for viewing online or in person at Diamond Bar City Hall during its regular business hours of Monday through Thursday 7:30 a.m. to 5:30 p.m., and Friday from 7:30 a.m. to 4:30 p.m.
Everyone is encouraged to report property crime-related information or any suspicious activity to the Walnut-Diamond Bar Sheriff’s Station. However no City employee or employee of the Los Angeles County Sheriff’s Department shall be eligible for a monetary reward under this program.
The majority of burglaries happen on weekdays during daytime hours when most people are away from their homes – either at work, school, or running errands. Suspicious activity that should be reported includes unfamiliar persons on foot, bicycle, or vehicle driving through residential streets below the speed limit or lingering in an area, seemingly without a purpose.
When calling the Sheriff’s Station at 909-595-2264 (9-1-1 if it’s an emergency), try to provide as much as information as you can about what you are observing (description of the individuals, and the car color, make, model and, if possible, license plate number).
The dispatcher will take down your contact information, and if your tip leads to the identification and arrest of a person or persons suspected of damaging personal property as a result of a burglary incident, the Sheriff’s Station will then forward a recommendation for reward disbursement to the Report for Reward Committee.
The Report for Reward Committee consists of the Diamond Bar City Manager or designee and a sworn member of the Sheriff’s Department.
The committee members will consider and verify the Sheriff’s Department recommendation and ensure that the information provided was directly relevant to the identification and arrest of the suspect(s), and that there was damage to real or personal property as a result of the burglary incident.
The Report for Reward Committee reviews each recommendation carefully and determines the reward amount based on the specific characteristics of the incident, including how much weight the tip carried in locating and arresting the burglary suspect, and the value of the property damaged.
Get to know your neighbors and watch out for each other’s property. The more eyes you have looking for suspicious or criminal activity, the better protected you are your neighbors will be against burglaries. If you are not already a member of Neighborhood Watch, consider joining or starting a group in your area by calling Community Relations Deputy Aaron Scheller at 909-839-7079.
Yes. Currently, burglary-related tips can only be provided by calling the Diamond Bar-Walnut Sheriff’s Station at 909-595-2264. Always dial 9-1-1 if it’s an emergency or the incident is in progress.
Property crimes that occur in other cities should be reported to the law enforcement agency that has jurisdiction over the particular area. The Diamond Bar-Walnut Sheriff’s Station, for example, serves the cities of Diamond Bar and Walnut, as well as Rowland Heights, and unincorporated areas of Covina Hills and West Covina. Only tips for residential and vehicular burglaries committed with Diamond Bar city limits will be considered for a reward.
No, it is illegal to possess, transport, discharge, or sell fireworks within the City of Diamond Bar.
The City's Neighborhood Improvement Officers enforce all the municipal codes applicable in the community.
If a Neighborhood Improvement Officer determines that a property is not in compliance with a municipal code, a notice of violation is sent to the owner allowing a certain number of days to correct the violation. If a violation is not corrected within the time allowed, the owner may receive a citation and fine. Any action that is taken in association with correcting the violation will be charged to the property owner. Failure to pay the fine will result in a lien being placed against the property.
Contact the Neighborhood Improvement Officer at 909-839-7030. You can also submit a service request.
All individuals and businesses doing work within city limits, whether or not they have a physical structure in the city, are required to have a business license. This includes contractors, Internet and home-based businesses. Applications and renewals are processed online at City Hall. Fees determined at the time of application submission. Contact the Planning Division at 909-839-7030.
If you are planning renovations or new construction in or around your property, chances are you will need to obtain a building permit. Taking out a permit before commencing your construction project not only keeps you in compliance with City law, but also protects you and your investment - be it a home or a business.
For more information, contact the Building and Safety Division.
All trash cans must be kept out of public view at all times. (Exception will be made on the evening prior to, and/or the day of your trash pick-up.) Rear yard storage of trash receptacles shall be screened by approved walls or fences from view of neighboring property, public and private streets, and public and private right-of-way. For bulky item pickup, contact your waste hauler - Single family residences may contact Waste Management at 909-599-1274 and multi-family residences may contact Valley Vista at 800-442-6454.