This hub organises independent ADU planning information by reviewing authority. It does not claim a physical office or guaranteed contractor coverage in every place listed. Provider availability is checked only after the address and project are understood.
City of Los Angeles
The main service and decision guides focus on projects reviewed within the City of Los Angeles. The City maintains adopted ADU material through Los Angeles City Planning, while LADBS handles building information and plan review. Draft proposals and another city’s programme should not be presented as current City rules.
Start with ADU feasibility, then use the project-type guide for detached, garage-conversion, attached or junior ADU work.
Los Angeles County is not one permit jurisdiction
The County name describes a broad region containing many incorporated cities as well as unincorporated communities. LA County Planning’s ADU guidance applies to unincorporated County property; it is not a substitute for the City of Los Angeles or another city’s current instructions.
Use the Los Angeles County jurisdictions guide to establish the authority before interpreting programme, coastal, historic, fire or utility information.
Researched city guides
Long Beach
The Long Beach ADU guide covers the City’s current direct administration of State ADU law, pre-approved-plan transition, historic and coastal review, and current submission instructions. These facts are specific to Long Beach.
Pasadena
The Pasadena ADU guide covers the City’s consultation option, the 2026 status of older standard plans, historic-property visibility considerations and the separate eligibility conditions attached to a City loan programme.
West Hollywood
The West Hollywood ADU guide tests the City’s free pre-approved detached plan against compact-site constraints and identifies the split water-service territory and separate electric utility.
Why other city pages are not published yet
Culver City, Glendale, Burbank, Santa Monica, Torrance, Inglewood, Beverly Hills and San Fernando were included in the initial demand and competition research. They remain holds, not exclusions. Publishing a city name is not useful unless the page supports a distinct reader decision with current municipal evidence and plausible provider coverage.
Future pages can be added when Search Console impressions, a qualified enquiry, direct operator confirmation, refreshed market evidence or a meaningful rule change creates a clear reader job. This prevents a directory of thin, interchangeable location pages.
Costs should still be normalised across jurisdictions using the Los Angeles California ADU cost guide, with each city or utility-specific item shown separately.
Provider coverage is a separate gate
Public contractor websites indicate that some Los Angeles-area ADU companies travel across multiple County jurisdictions. Public claims do not establish current capacity, licence status or fit for a particular project.
Before an introduction, confirm:
- exact address and jurisdiction;
- project type, approximate scope and budget stage;
- current service radius and scheduling capacity;
- contracting entity and CSLB record; and
- whether the provider handles the relevant design, permit and utility path.
No location page should imply that an owner has been matched until that check occurs.
What to prepare for a location check
Provide the address or at least the city and ZIP, the existing property type, proposed ADU type, rough room or size goal, driveway or side access, known utility information and any survey or plan documents. Note a hillside, historic district, coastal location, fire history or unincorporated address if known.
Do not send sensitive financial records, identification documents or tenant information through an initial web enquiry.
Frequently asked questions
Does this site serve all of Los Angeles County?
The planning guides cover selected jurisdictions. Provider availability is not guaranteed and must be confirmed for the address and project.
Is an unincorporated Los Angeles County address reviewed by LADBS?
Not generally. Confirm the actual jurisdiction and use LA County Planning and Public Works sources appropriate to unincorporated property.
Why is my city not listed?
It may still be within a plausible operator service area. The site publishes a dedicated page only when there is enough current, non-duplicative local evidence to support it.
Can you determine jurisdiction from a ZIP code?
Not reliably. ZIP and postal city names do not always follow municipal boundaries. Confirm against the parcel address and official jurisdiction tools.