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ADU types we build in San Jose

Five ways to add a unit to a San Jose lot, each with design, permits and construction.

Check what my lot allows

Wide grassy backyard behind a single-story house

Choose a starting point

White board-and-batten cottage with green shutters

Detached ADU

A free-standing cottage in the back yard, studio to two bedrooms.

Detached ADU

Small detached white garage with an old pickup inside

Garage conversion

Reuse the slab, walls and roof you already have.

Garage conversion

Stucco house with an arched garden gate and cypress trees

Attached ADU

A side or rear addition that is a full, separate unit.

Attached ADU

Desk with a laptop and plants beside a sunny window

Junior ADU

A small suite carved from existing space in the house.

Junior ADU

Hands using a drafting compass on drawings beside a laptop

Design and permits

Custom or pre-approved plans, submitted and tracked.

Design and permits

Which ADU type fits my lot?

If the lot qualifies, a preapproved detached unit is usually the fastest route. If not, a custom detached ADU or a garage conversion. Small back yards point to a junior ADU or an attached unit.

Compare costs

Is your lot ready for an ADU?

Send your address and a sentence about what you want. We look up the zoning, setbacks and utility routes and reply with the ADU types that fit.

We build in San Jose, CA.