Studio ADU floor plans
A studio ADU puts living and sleeping in one open room, with a separate bath, a kitchen run and a laundry closet. It works from about 300 sq ft and feels roomy at 500 to 600. These four layouts are measured and open in the editor.
400 sq ft studio
| Kitchen | 10'-6" x 7'-6" |
|---|---|
| Bath | 6' x 7'-6" |
| Laundry closet | 5' x 7'-6" |
| Living | 21'-6" x 11'-1" |
$186K to $250K estimated build cost in Sacramento. Add your ZIP in the editor for your area.
More floor plans to start from
350 sq ft studio
$173K to $232K estimated build cost in Sacramento. Add your ZIP in the editor for your area.
500 sq ft studio
$213K to $286K estimated build cost in Sacramento. Add your ZIP in the editor for your area.
600 sq ft studio
$240K to $321K estimated build cost in Sacramento. Add your ZIP in the editor for your area.
What a studio gives up, and gains
No bedroom door, so a studio suits one person, a guest suite or a home office better than a couple or a family. In return it's the cheapest ADU to build per unit, and the open room makes a small footprint feel bigger.
At 350 sq ft the main room is about 20 by 10 ft. At 600 sq ft in a wide shape it grows to about 30 by 13 ft, enough for a sofa area and a bed area with space between.
Will it fit your lot?
For homes in the California areas we cover, the free lot check reads your parcel, setbacks and local rules and shows the biggest unit that fits.
Check your lotQuestions
How small can a studio ADU be?
These layouts start at 350 sq ft with a full bath and a kitchen run. The generator goes down to 300 sq ft in a compact shape; below that the kitchen and bath crowd the living space.
Studio or 1 bedroom?
A 1 bedroom needs about 450 to 500 sq ft to feel right. If you have that room and want a renter or a family member, the bedroom door is usually worth it.
Last checked 2026-11-02. Costs are estimates priced at ZIP 95818, not bids. Floor plans are concept layouts; a licensed designer or architect prepares the plans your city approves.