ADUs and additions, Rolling Hills, Los Angeles County

ADU Construction in Rolling Hills

How an ADU is planned in Rolling Hills on the Palos Verdes Peninsula: exterior details for moist air, each ADU type, utilities and the final inspection.

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Rolling Hills lies on the Palos Verdes Peninsula, in a zone near open water, and our ADU planning there begins with what moist air can do to a building. Fasteners, flashing, window frames and exterior finish are chosen for that exposure before the floor plan is fixed. From there the parcel is tested for a JADU, a converted garage, a unit joined to the house or a freestanding one, under the ADU rules that apply.

Weighing the unit types

A detached unit gives the most separation from the main house and needs its own foundation, its own utility runs and a route for equipment to the back of the property. An attached unit shares one wall, which shortens plumbing and power runs but brings a fire rated assembly between the two homes. A garage conversion hinges on whether the existing slab, walls and roof can be raised to habitable standards. A JADU works within the walls of the main house and needs an exterior door of its own. Every option is sketched against the setbacks so they can be judged together.

Utilities and the final sign off

Before drawings start, we find where the waste line leaves the house, how much spare capacity the electrical panel holds and whether a gas line is wanted at all. Where a parcel drains to a septic tank, the tank and its field are checked before a new bathroom is tied in. The building department reviewing Rolling Hills plans also confirms whether a separate permit tied to nearness to the water applies, which can add a step. At the final inspection, the unit needs working smoke and carbon monoxide alarms, finished egress windows and an address the fire service can read from the road.

What we build in Rolling Hills

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

Cities close by

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