County directory

Los Angeles County ADU rules

Each place name links to that city or county's own ADU page. Places with a 'See our rules summary' button also have our plain-language summary of the local ADU rules, with sources. Each place below says whether we show local rules or California state rules.

Places in Los Angeles County

Agoura Hills (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Agoura Hills details
The size, setback, height, and parking figures are California state rules. The Agoura Hills section lists the local details we have on file, like plans, forms, and contacts.
Alhambra (opens the government site in a new tab)See our rules summary
Showing Alhambra city rules
These are Alhambra's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Alhambra rule may conflict with state law or is being challenged, we show the California state rule instead. This covers owner-occupancy rules for junior ADUs.
Arcadia (opens the government site in a new tab)See our rules summary
Showing California state rules because Arcadia's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Arcadia section lists the local details we have on file, like plans, forms, and contacts.
Where a Arcadia rule may conflict with state law or is being challenged, we show the California state rule instead. This covers limits on combining ADU types.
Artesia (planning page) (opens the government site in a new tab)See our rules summary
Showing Artesia city rules
These are Artesia's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Avalon (planning page) (opens the government site in a new tab)See our rules summary
Showing Avalon city rules
These are Avalon's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Azusa (opens the government site in a new tab)See our rules summary
Showing California state rules because Azusa's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Azusa section lists the local details we have on file, like plans, forms, and contacts.
Where a Azusa rule may conflict with state law or is being challenged, we show the California state rule instead. This covers owner-occupancy rules for junior ADUs.
Baldwin Park (opens the government site in a new tab)See our rules summary
Showing Baldwin Park city rules
These are Baldwin Park's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Baldwin Park rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a rule that ADUs sit in the rear of the lot and limits on combining ADU types.
Bell (planning page) (opens the government site in a new tab)
Showing California state rules because Bell's local rules may conflict with state law or are being challenged
We show the state rules for a one ADU plus one junior ADU limit on single-family lots, a two-unit limit on detached ADUs at multifamily lots, owner-occupancy rules for junior ADUs that do not depend on shared bathrooms, and a deed restriction on every ADU. Check with Bell about how it handles this today.
Bell Gardens (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Bell Gardens details
The size, setback, height, and parking figures are California state rules. The Bell Gardens section lists the local details we have on file, like plans, forms, and contacts.
Bellflower (planning page) (opens the government site in a new tab)
Showing California state rules because Bellflower's local rules may conflict with state law or are being challenged
We show the state rules for owner-occupancy rules for junior ADUs that do not depend on shared bathrooms, a recorded covenant for every ADU, and a separate utility connection for each ADU. Check with Bellflower about how it handles this today.
Beverly Hills (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Beverly Hills details
The size, setback, height, and parking figures are California state rules. The Beverly Hills section lists the local details we have on file, like plans, forms, and contacts.
Bradbury (planning page) (opens the government site in a new tab)
Showing California state rules because Bradbury's local rules may conflict with state law or are being challenged
We show the state rules for owner-occupancy rules for junior ADUs that do not depend on shared bathrooms, and an ADU ordinance that an October 2025 state housing department letter says may not be on file with the state. Check with Bradbury about how it handles this today.
Burbank (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Burbank details
The size, setback, height, and parking figures are California state rules. The Burbank section lists the local details we have on file, like plans, forms, and contacts.
Calabasas (opens the government site in a new tab)See our rules summary
Showing California state rules because a local rule change is pending
The size, setback, height, and parking figures are California state rules. The Calabasas section lists the local details we have on file, like plans, forms, and contacts.
Where a Calabasas rule may conflict with state law or is being challenged, we show the California state rule instead. This covers parts of the new ordinance, such as unit limits, a size cap, and height limits.
A local rule change is pending. The city adopted a new ADU ordinance (Ordinance 2026-426) that takes effect about November 13, 2026. We'll add the new local rules after they take effect and we've reviewed them.
Carson (planning page) (opens the government site in a new tab)
Showing California state rules because Carson's local rules may conflict with state law or are being challenged
We show the state rules for a rule that only one category of ADU may be used per lot, a two-unit limit on detached ADUs at multifamily lots, a one-story 16-foot height limit for detached ADUs, subjective design standards, and a deed restriction on every ADU. Check with Carson about how it handles this today.
Cerritos (planning page) (opens the government site in a new tab)
Showing California state rules because Cerritos's local rules may conflict with state law or are being challenged
We show the state rules for older second-unit rules that require director review, a 10,000 sq ft minimum lot size, a 750 sq ft size cap, a one-bedroom and two-occupant limit, and a deed restriction. Check with Cerritos about how it handles this today.
City of Industry (code) (opens the government site in a new tab)
Showing California state rules because Industry's local rules may conflict with state law or are being challenged
We show the state rules for limits on how many ADUs a lot can have. Check with Industry about how it handles this today.
Claremont (opens the government site in a new tab)See our rules summary
Showing Claremont city rules
These are Claremont's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Claremont rule may conflict with state law or is being challenged, we show the California state rule instead. This covers subjective design and neighborhood-compatibility standards, a deed restriction on every ADU before building permits, kitchen and laundry fixture requirements, and a 50% size cap on attached ADUs without the 800 sq ft minimum.
Commerce (main website) (opens the government site in a new tab)
Showing California state rules
We don't have Commerce's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Commerce for local details.
Compton (opens the government site in a new tab)
Showing California state rules because Compton's local rules may conflict with state law or are being challenged
We show the state rules for a one-ADU-and-one-junior-ADU limit. Check with Compton about how it handles this today.
Covina (planning page) (opens the government site in a new tab)
Showing California state rules because Covina's local rules may conflict with state law or are being challenged
We show the state rules for rules the state housing department said in June 2026 do not comply with state ADU law, including limits on unit combinations, a ban on ADUs at lots with a guest house, extra setbacks for two-story ADUs, and subjective design standards. Check with Covina about how it handles this today.
Cudahy (code) (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City code: https://cudahy.municipal.codes/CMC/20.52.750
Culver City (code) (opens the government site in a new tab)See our rules summary
Showing Culver City city rules
These are Culver City's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Culver City rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the front setback for ADUs.
Diamond Bar (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Diamond Bar details
The size, setback, height, and parking figures are California state rules. The Diamond Bar section lists the local details we have on file, like plans, forms, and contacts.
Downey (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Downey details
The size, setback, height, and parking figures are California state rules. The Downey section lists the local details we have on file, like plans, forms, and contacts.
Duarte (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Duarte details
The size, setback, height, and parking figures are California state rules. The Duarte section lists the local details we have on file, like plans, forms, and contacts.
El Monte (planning page) (opens the government site in a new tab)See our rules summary
Showing California state rules, plus El Monte details
The size, setback, height, and parking figures are California state rules. The El Monte section lists the local details we have on file, like plans, forms, and contacts.
El Segundo (opens the government site in a new tab)See our rules summary
Showing California state rules, plus El Segundo details
The size, setback, height, and parking figures are California state rules. The El Segundo section lists the local details we have on file, like plans, forms, and contacts.
Gardena (planning page) (opens the government site in a new tab)See our rules summary
Showing Gardena city rules
These are Gardena's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Gardena rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a rule allowing only one ADU or one junior ADU per lot unless a state-mandated combination applies, and a rule that state-mandated units may not be combined with other units.
Glendale (opens the government site in a new tab)See our rules summary
Showing California state rules because Glendale's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Glendale section lists the local details we have on file, like plans, forms, and contacts.
Where a Glendale rule may conflict with state law or is being challenged, we show the California state rule instead. This covers homeowners association sign-off for condo ADUs and a second-bedroom rule for ADUs over 850 sq ft.
Glendora (opens the government site in a new tab)
Showing California state rules because Glendora's local rules may conflict with state law or are being challenged
We show the state rules for a one-ADU limit on single-family lots and owner-occupancy rules for junior ADUs that do not depend on shared bathrooms. Check with Glendora about how it handles this today.
Hawaiian Gardens (opens the government site in a new tab)See our rules summary
Showing Hawaiian Gardens city rules
These are Hawaiian Gardens's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Hawthorne (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Hawthorne details
The size, setback, height, and parking figures are California state rules. The Hawthorne section lists the local details we have on file, like plans, forms, and contacts.
Hermosa Beach (opens the government site in a new tab)See our rules summary
Showing Hermosa Beach city rules
These are Hermosa Beach's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Hidden Hills (opens the government site in a new tab)
Showing California state rules because Hidden Hills's local rules may conflict with state law or are being challenged
We show the state rules for a step that requires homeowners association sign-off as part of the ADU application. Check with Hidden Hills about how it handles this today.
Huntington Park (planning page) (opens the government site in a new tab)See our rules summary
Showing Huntington Park city rules
These are Huntington Park's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Huntington Park rule may conflict with state law or is being challenged, we show the California state rule instead. This covers an 800 sq ft cap on new detached ADUs on single-family lots, a rule that detached ADUs match the main home's architectural style, and a requirement to remove the driveway approach when a garage is converted.
Inglewood (opens the government site in a new tab)
Showing California state rules because Inglewood's local rules may conflict with state law or are being challenged
We show the state rules for site plan review, a 500 sq ft minimum size, side setbacks of up to 5 feet, a one-story 16-foot height limit, owner-occupancy rules for junior ADUs that do not depend on shared bathrooms, and a recorded covenant for every ADU. Check with Inglewood about how it handles this today.
Irwindale (planning page) (opens the government site in a new tab)
Showing California state rules because Irwindale's local rules may conflict with state law or are being challenged
We show the state rules for a one ADU plus one junior ADU limit, a two-unit limit on detached ADUs at multifamily lots, a 16-foot height limit, subjective design standards, and a deed restriction that says owner occupancy of an ADU property is required by state law. Check with Irwindale about how it handles this today.
La Cañada Flintridge (opens the government site in a new tab)See our rules summary
Showing La Cañada Flintridge city rules
These are La Cañada Flintridge's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a La Cañada Flintridge rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a 10-year rule against converting or demolishing an ADU or junior ADU.
La Habra Heights (opens the government site in a new tab)See our rules summary
Showing La Habra Heights city rules
These are La Habra Heights's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a La Habra Heights rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a rule requiring one parking space for every ADU in Very High Fire Hazard Severity Zones, even where state law says no parking can be required.
La Mirada (planning page) (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
Planning page: https://www.lamirada.gov/departments/community_development/planning/index.php
La Puente (opens the government site in a new tab)See our rules summary
Showing California state rules, plus La Puente details
The size, setback, height, and parking figures are California state rules. The La Puente section lists the local details we have on file, like plans, forms, and contacts.
La Verne (opens the government site in a new tab)See our rules summary
Showing California state rules, plus La Verne details
The size, setback, height, and parking figures are California state rules. The La Verne section lists the local details we have on file, like plans, forms, and contacts.
Lakewood (planning page) (opens the government site in a new tab)
Showing California state rules because Lakewood's local rules may conflict with state law or are being challenged
We show the state rules for an ADU ordinance from 2023 that a May 2026 state housing department letter says may not reflect current state ADU law. Check with Lakewood about how it handles this today.
Lancaster (planning page) (opens the government site in a new tab)See our rules summary
Showing California state rules because Lancaster's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Lancaster section lists the local details we have on file, like plans, forms, and contacts.
Where a Lancaster rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a live-on-site rule for owner-builder ADU applications.
Lawndale (opens the government site in a new tab)See our rules summary
Showing Lawndale city rules
These are Lawndale's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Lawndale rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a one-ADU limit, design matching, a deed restriction on ADUs, a 20-foot building separation, front-yard location limits, owner occupancy for all junior ADUs, a third-party inspection for unpermitted units, and a 16-foot limit when a detached ADU is paired with a junior ADU.
Lomita (planning page) (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
Planning page: https://lomitacity.com/planning-division/
Long Beach (opens the government site in a new tab)See our rules summary
Showing Long Beach city rules
These are Long Beach's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Los Angeles (opens the government site in a new tab)See our rules summary
Showing California state rules because Los Angeles's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Los Angeles section lists the local details we have on file, like plans, forms, and contacts.
Where a Los Angeles rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the City's ADU ordinance (LAMC 12.22 A.33), which the state housing department (HCD) said in a November 19, 2024 letter does not match state ADU law on 17 points, including the hillside and fire zone limits and the two-story limit for detached ADUs.
A local rule change is pending. The City is drafting a replacement ADU ordinance (Missing Middle LA, case CPC-2026-4383-CA). It has not been adopted yet. We'll add the new local rules after they take effect and we've reviewed them.
Lynwood (opens the government site in a new tab)
Showing California state rules because Lynwood's local rules may conflict with state law or are being challenged
We show the state rules for older second-unit rules with a 6,220 sq ft minimum lot size, a 10-foot separation, matching architecture, primary-home size and setback limits, extra parking, and a ban on using garages or accessory structures. Check with Lynwood about how it handles this today.
Malibu (opens the government site in a new tab)
Showing California state rules because a local rule change is pending
A local rule change is pending. The whole city is in the Coastal Zone, where ADUs must also meet the City's Local Coastal Program. The City adopted updated ADU zoning rules (Ordinance No. 535) on June 22, 2026, and its ADU Local Coastal Program amendment has been with the California Coastal Commission, so which local rules apply to a given ADU could not be confirmed. We'll add the new local rules after they take effect and we've reviewed them.
Manhattan Beach (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Manhattan Beach details
The size, setback, height, and parking figures are California state rules. The Manhattan Beach section lists the local details we have on file, like plans, forms, and contacts.
Maywood (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City ADU page: https://cityofmaywood.com/DocumentCenter/View/3209/ADU-Handbook-2025
Monrovia (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City ADU page: https://www.monroviaca.gov/your-government/community-development/planning/accessory-dwelling-units
Montebello (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City ADU page: https://www.montebelloca.gov/departments/planning_community_development/planning_division/accessory_dwelling_units
Monterey Park (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Monterey Park details
The size, setback, height, and parking figures are California state rules. The Monterey Park section lists the local details we have on file, like plans, forms, and contacts.
Norwalk (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Norwalk details
The size, setback, height, and parking figures are California state rules. The Norwalk section lists the local details we have on file, like plans, forms, and contacts.
Palmdale (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Palmdale details
The size, setback, height, and parking figures are California state rules. The Palmdale section lists the local details we have on file, like plans, forms, and contacts.
Palos Verdes Estates (code) (opens the government site in a new tab)See our rules summary
Showing Palos Verdes Estates city rules
These are Palos Verdes Estates's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Palos Verdes Estates rule may conflict with state law or is being challenged, we show the California state rule instead. This covers matching materials and roof slope, window privacy rules, a one-story limit and a historic-visibility rule for locally regulated ADUs.
Paramount (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Paramount details
The size, setback, height, and parking figures are California state rules. The Paramount section lists the local details we have on file, like plans, forms, and contacts.
Pasadena (opens the government site in a new tab)See our rules summary
Showing California state rules while we re-check Pasadena's local rules
Pico Rivera (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Pico Rivera details
The size, setback, height, and parking figures are California state rules. The Pico Rivera section lists the local details we have on file, like plans, forms, and contacts.
Pomona (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City ADU page: https://www.pomonaca.gov/government/departments/development-services/accessory-dwelling-units
Rancho Palos Verdes (opens the government site in a new tab)
Showing California state rules because a local rule change is pending
A local rule change is pending. The City Council started an update of the City's ADU rules in October 2026, and part of the city is in the Coastal Zone, so current local rules could not be confirmed. We'll add the new local rules after they take effect and we've reviewed them.
Redondo Beach (opens the government site in a new tab)See our rules summary
Showing Redondo Beach city rules
These are Redondo Beach's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Redondo Beach rule may conflict with state law or is being challenged, we show the California state rule instead. This covers owner occupancy for ADUs, owner-occupancy rules for junior ADUs that do not depend on shared bathrooms, a one-ADU limit and design rules for other ADUs, and a two-unit limit on detached ADUs at multifamily lots.
Rolling Hills (code) (opens the government site in a new tab)See our rules summary
Showing Rolling Hills city rules
These are Rolling Hills's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Rolling Hills rule may conflict with state law or is being challenged, we show the California state rule instead. This covers matching materials and roof slope, window privacy rules, a one-story limit and a historic-visibility rule for locally regulated ADUs.
Rolling Hills Estates (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
City ADU page: https://www.rollinghillsestates.gov/departments/community-development/project-updates/rhemc-chapter-17-56-accessory-dwelling-units
Rosemead (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Rosemead details
The size, setback, height, and parking figures are California state rules. The Rosemead section lists the local details we have on file, like plans, forms, and contacts.
San Dimas (code) (opens the government site in a new tab)See our rules summary
Showing San Dimas city rules
These are San Dimas's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a San Dimas rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a one-ADU-and-one-junior-ADU limit, a two-unit 16-foot limit on detached ADUs at multifamily lots, a 6-foot building separation, design, entrance and window rules, front-yard placement at the director's discretion, and washer and dryer hookups.
San Fernando (planning page) (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
Planning page: https://www.sanfernando.gov/Business-Support/Planning-and-Zoning
San Gabriel (opens the government site in a new tab)See our rules summary
Showing California state rules, plus San Gabriel details
The size, setback, height, and parking figures are California state rules. The San Gabriel section lists the local details we have on file, like plans, forms, and contacts.
San Marino (planning page) (opens the government site in a new tab)
Showing California state rules because San Marino's local rules may conflict with state law or are being challenged
We show the state rules for limits on ADU combinations and bedrooms, two-story and detached height limits, entrance rules, separation rules, junior ADU owner occupancy and deed restrictions, garage rules and fire sprinkler rules that a March 2026 state housing department letter found out of line with state law. Check with San Marino about how it handles this today.
Santa Clarita (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Santa Clarita details
The size, setback, height, and parking figures are California state rules. The Santa Clarita section lists the local details we have on file, like plans, forms, and contacts.
Santa Fe Springs (opens the government site in a new tab)
Showing California state rules because Santa Fe Springs's local rules may conflict with state law or are being challenged
We show the state rules for an ADU ordinance from 2017 that an October 2025 state housing department letter says may not reflect current state ADU law, and posted rules that cite state law before its 2024 renumbering. Check with Santa Fe Springs about how it handles this today.
Santa Monica (opens the government site in a new tab)See our rules summary
Showing Santa Monica city rules
These are Santa Monica's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Santa Monica rule may conflict with state law or is being challenged, we show the California state rule instead. This covers owner-occupancy rules for junior ADUs, front setbacks and a rental deed restriction for some ADUs.
Sierra Madre (opens the government site in a new tab)See our rules summary
Showing California state rules because Sierra Madre's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Sierra Madre section lists the local details we have on file, like plans, forms, and contacts.
Where a Sierra Madre rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the front setback for ADUs.
Signal Hill (opens the government site in a new tab)See our rules summary
Showing California state rules because Signal Hill's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Signal Hill section lists the local details we have on file, like plans, forms, and contacts.
Where a Signal Hill rule may conflict with state law or is being challenged, we show the California state rule instead. This covers limits on combining an ADU and a junior ADU.
South El Monte (opens the government site in a new tab)See our rules summary
Showing California state rules, plus South El Monte details
The size, setback, height, and parking figures are California state rules. The South El Monte section lists the local details we have on file, like plans, forms, and contacts.
South Gate (opens the government site in a new tab)
Showing California state rules because South Gate's local rules may conflict with state law or are being challenged
We show the state rules for junior ADU size, limits on the number of ADUs, separate utilities, floor area, building separation, design standards, impact fee and review-deadline rules that a March 2026 state housing department letter found out of line with state law. Check with South Gate about how it handles this today.
South Pasadena (planning page) (opens the government site in a new tab)
Showing California state rules
We couldn't read this city's ADU code yet, so we're showing California state rules. Check with the city before you plan.
Planning page: https://www.southpasadenaca.gov/Your-Government/Department-Service-Areas/Community-Development/Planning-Resources
Temple City (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Temple City details
The size, setback, height, and parking figures are California state rules. The Temple City section lists the local details we have on file, like plans, forms, and contacts.
Torrance (opens the government site in a new tab)
Showing California state rules because Torrance's local rules may conflict with state law or are being challenged
We show the state rules for a one-ADU-and-one-junior-ADU limit, owner-occupancy rules for junior ADUs, front setbacks and lot coverage limits, and compliance with City design guidelines. Check with Torrance about how it handles this today.
Vernon (planning page) (opens the government site in a new tab)
Showing California state rules
We don't have Vernon's own ADU rules on file, so this shows the California state rules that apply across the state. Check with Vernon for local details.
Walnut (opens the government site in a new tab)See our rules summary
Showing Walnut city rules
These are Walnut's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a Walnut rule may conflict with state law or is being challenged, we show the California state rule instead. This covers matching materials, colors and roof slope, and entrance placement rules.
West Covina (opens the government site in a new tab)
Showing California state rules because West Covina's local rules may conflict with state law or are being challenged
We show the state rules for a one-ADU-and-one-junior-ADU limit. Check with West Covina about how it handles this today.
West Hollywood (code) (opens the government site in a new tab)See our rules summary
Showing West Hollywood city rules
These are West Hollywood's own ADU rules on file, shown with the California state rules they build on. Each item says which is which.
Where a West Hollywood rule may conflict with state law or is being challenged, we show the California state rule instead. This covers a historic-visibility rule and window line-of-sight rules for locally regulated ADUs.
Westlake Village (opens the government site in a new tab)See our rules summary
Showing California state rules because a local rule change is pending
The size, setback, height, and parking figures are California state rules. The Westlake Village section lists the local details we have on file, like plans, forms, and contacts.
Where a Westlake Village rule may conflict with state law or is being challenged, we show the California state rule instead. This covers parts of the new ordinance, such as a size cap for attached ADUs and a design-matching rule.
A local rule change is pending. The city adopted a new ADU ordinance (Ordinance 318-26) that takes effect about November 13, 2026. We'll add the new local rules after they take effect and we've reviewed them.
Whittier (planning page) (opens the government site in a new tab)See our rules summary
Showing California state rules, plus Whittier details
The size, setback, height, and parking figures are California state rules. The Whittier section lists the local details we have on file, like plans, forms, and contacts.
Unincorporated Los Angeles County (opens the government site in a new tab)See our rules summary
Showing California state rules because Los Angeles County's local rules may conflict with state law or are being challenged
The size, setback, height, and parking figures are California state rules. The Los Angeles County section lists the local details we have on file, like plans, forms, and contacts.
Where a Los Angeles County rule may conflict with state law or is being challenged, we show the California state rule instead. This covers the County's ADU ordinance (Title 22, Section 22.140.640), which the state housing department (HCD) said in a December 1, 2025 letter does not match state ADU law on six points, including the limit on detached ADUs on multifamily lots.
A local rule change is pending. The County is drafting an ADU ordinance update. It has not been adopted yet. We'll add the new local rules after they take effect and we've reviewed them.

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