ADUs and additions, Los Angeles, Los Angeles County

Backyard ADUs Across Los Angeles

Plan a Los Angeles ADU with the jurisdiction confirmed first, every unit type drawn on the same site plan, and sewer and power checked before design.

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Glendale, Alhambra, South Pasadena, Monterey Park and West Hollywood each keep their own building departments, while Eagle Rock is part of the City of Los Angeles. Wherever the parcel lands, our process holds steady: confirm who issues the permit, read the lot against state ADU law and city zoning, sketch detached, attached, garage conversion and JADU options, then size sewer and power. A Los Angeles address goes to LADBS for plan check and inspections.

Every layout on the same site plan

Each unit type asks something different of an urban lot. A detached ADU needs its own footings and the longest trench back to the house connections. Attaching the unit to the house shortens those runs, though the shared wall must carry a rated separation. Converting a garage keeps the existing shell, provided the slab and framing hold up once opened and inspected. A JADU stays inside the main home and leaves the yard untouched. We draw every option to scale on the same plan, mark the setbacks the plan checker will measure, and show what each asks of the yard.

Sewer, power and the last inspection

Where the sewer lateral leaves the house and how much spare capacity the electrical service holds can decide where a new unit sits. We locate the cleanout, find the depth of the line, and read the panel rating before placing anything on paper. A gas line gets the same look when the layout calls for a gas range or water heater. Any upgrade those checks reveal is written into the scope at the start, where it can still shape the design. LADBS inspectors visit as the build progresses, and the unit becomes a legal home once the final inspection card is signed.

What we build in Los Angeles

Second units and room additions lead, with the rest of our services available on the same lot.

Cities close by

Planning a unit in Los Angeles?

Send the address. We check which ADU types the lot allows and reply with the next step.

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