ADUs and additions, Manhattan Beach, Los Angeles County
ADU Construction in Manhattan Beach
How the Manhattan Beach building department reviews an ADU, what it reads on the drawings, and how corrections and inspections carry a unit to the final.
The City of Manhattan Beach building department reviews ADU plans here, reading them against state ADU rules and the city zoning code. During feasibility we also find out whether a lot close to the water needs a further development permit from the city. Only then are detached, attached, JADU and garage conversion layouts fitted to the parcel and compared on paper.
What the reviewer reads on the drawings
The checker starts with where the unit sits: its distance from each property line, its spacing from the main house and, for a detached build, its height. A converted garage raises the parking question, and state ADU law does not require the lost spaces to be replaced. Fire rated assemblies are reviewed wherever the unit shares a wall with the house. The energy forms are read for insulation values, window performance and equipment efficiency. Exterior details matter on a lot that takes damp air off the water, so the drawings name corrosion resistant fasteners, sealed flashing and finishes made for moisture, and the inspector looks for each one before the walls close.
From corrections to final sign off
Plan check returns a list of comments, and each one is answered on the drawings before the set goes back for another round. Any correction that changes the scope is written up before work continues. After the permit issues, inspections follow footings, framing, rough plumbing, electrical and insulation, ending with the final. Hermosa Beach, Redondo Beach, El Segundo and Torrance each review plans through their own city departments, and so do Hawthorne and Gardena. The counter changes from one city to the next while our sequence for the lot stays fixed.
What we build in Manhattan Beach
Second units and room additions lead, with the rest of our services available on the same lot.
Cities close by
Planning a unit in Manhattan Beach?
Send the address. We check which ADU types the lot allows and reply with the next step.