ADUs and additions, Santa Monica, Los Angeles County
ADUs in Santa Monica, Reviewed by the City
Santa Monica ADUs go to the city for plan check. We compare every unit type, detail the shell for damp air near the water, and size utilities up front.
Santa Monica's own Building and Safety Division checks the drawings for a new ADU, while city planners measure placement, height and setbacks against city standards that state law bounds. A parcel there may also fall inside a special review area that adds a separate permit step, so we confirm that from the parcel record at the outset. Detached, attached, garage conversion and JADU layouts are then compared on paper before the chosen layout is drawn for submittal.
Detailing for damp air near the water
On a lot near the water, moist air works on every exposed fastener, hinge and flashing edge. We specify stainless or hot-dip galvanized connectors, flashing in metals that hold up to corrosion, and exterior paint and sealant systems rated for wet, corrosive exposure. Window frames in vinyl, fiberglass or coated aluminum resist pitting, and a vented roof assembly lets the attic dry out after damp weather. Each choice is listed in the written scope with its cost beside it, so you can decide which upgrades go in and the reviewer sees the details you approved.
Placing the unit and passing inspection
Utility locations narrow the choices early. We find the sewer lateral and decide whether the unit can share it or needs a connection of its own, then read the electrical panel to see whether it can carry a second kitchen or calls for a separate meter. Those findings, together with the setbacks, fix the footprint before design goes further. After permits issue, a city inspector checks the foundation, framing and rough-in work at each stage. Occupancy follows a signed final, and from that day the unit can legally be lived in or rented under the city's terms.
What we build in Santa Monica
Second units and room additions lead, with the rest of our services available on the same lot.
Planning a unit in Santa Monica?
Send the address. We check which ADU types the lot allows and reply with the next step.