Can I build an ADU behind an older house?

On most single-family lots in California, yes. Setbacks, height and utility access decide the size and placement. We check them at the walk-through.

Will the ADU need its own electrical service?

Sometimes. Many ADUs run from the main panel after an upgrade, and some get a separate meter. We size it from the planned appliances.

Do you design the ADU as well as build it?

Yes. The plans package covers the drawings and the permit submittal, and construction follows once the permit is issued.

ADU Construction Beside an Older House

A backyard unit or garage conversion that looks like it belongs on the lot, with the old house's utilities checked before the new one is tied in.

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Design that matches the main house

An ADU behind an older house looks best when it borrows from it: the roof pitch, the siding, the window proportions and the trim. We design the unit to sit with the house rather than against it, within the size and setback rules for the lot.

Old utilities, new demand

An ADU adds load to the electrical service, the water line and the sewer. On an older lot these are often the original small service and clay or cast iron sewer line. We check them first, because an upgrade found late can change both the budget and the schedule.

Garage conversions

A detached garage can often become an ADU. Older garages may need a new slab, new framing or a new foundation to meet current code. We inspect the structure and tell you whether converting it or building new makes more sense.

ADU Construction: questions

On most single-family lots in California, yes. Setbacks, height and utility access decide the size and placement. We check them at the walk-through.
Sometimes. Many ADUs run from the main panel after an upgrade, and some get a separate meter. We size it from the planned appliances.
Yes. The plans package covers the drawings and the permit submittal, and construction follows once the permit is issued.

Where we offer ADU Construction

Ask about an ADU for your lot

Book a walk-through. We will look at the lot, the main house and the utilities and explain your options.

Ask for a callback Start with a walk-through