New Construction in Brentwood
Brentwood houses built in a fixed order, from survey and soils report to final sign-off, with an ADU slotted into the sequence where allowed.
Sequence is the plan on a Brentwood lot. The survey and soils report feed the design, the design feeds engineering, and engineering feeds the permit set, so each step waits on the one behind it. Fire hazard mapping touches Brentwood, and a lot may also fall inside the coastal zone, so both checks are placed at the front of the line.
Before the permit
The early stages are paper and probing. A boundary survey fixes the lot lines, a soils engineer tests the ground, and the designer sizes the house to the setbacks and height limits that apply. Structural, energy and fire details get drawn, then LADBS plan check begins. If an ADU is planned, it joins this set so the review covers every building at once. A coastal development permit, where the lot needs one, runs alongside the city process and can set conditions on the design.
From demolition to final
Once a permit issues, an old house comes down and utilities are disconnected, then grading and footing work begin. Inspectors visit at the footing, the framing, the rough plumbing, electrical and mechanical stage, the insulation and the drywall nailing. Dry-in comes before interior trades start, so finished surfaces are not left exposed to a change in weather. The building final closes the permit, and a certificate of occupancy follows for the new house and any ADU. Utility meters are set and the gas line is tested before that final is scheduled.
New Construction in Brentwood: common questions
Placing the unit in the first permit set keeps the review to a single cycle and lets the trenches be dug just once, where the lot qualifies. Its sequence then follows the house, with its own inspections along the way.
Map checks for the coastal and fire provisions run next to the survey and soils work. Design, engineering and plan check follow. An older house on the lot means teardown paperwork and shut-off services ahead of grading, and no footing is dug until the permit issues.
Height and parking come from city zoning, while the structural, energy and green sections of the building code govern the build itself. Mapped fire parcels face wildfire provisions, a coastal development permit may apply when the lot is in the coastal zone, and ADU law adds state and city requirements for any unit.
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