ADU floor plans

300 sq ft

from $129,000Studio living. Fits most lots, including tight urban ones.

The Nook

Studio · 1 bath · 300 sq ft

$129,000starting*

The Linear

Studio · 1 bath · 300 sq ft

$129,000starting*

400–450 sq ft

from $152,000A true one-bedroom with a separate living area.

The Cottage

1 bed · 1 bath · 420 sq ft

$152,000starting*

The Haven

1 bed · 1 bath · 450 sq ft

$158,000starting*

500–600 sq ft

from $177,000Under 500 sq ft avoids school fees in California; these trade that for a roomier one-bedroom or a den.

The Willow

1 bed · 1 bath · 550 sq ft

$177,000starting*

The Juniper

1 bed + den · 1 bath · 600 sq ft

$186,000starting*

600–700 sq ft

from $196,000Comfortable one-bedroom or compact two-bedroom.

The Aspen

1 bed · 1 bath · 650 sq ft

$196,000starting*

The Sierra

2 bed · 1 bath · 700 sq ft

$205,000starting*

700–749 sq ft

from $209,000Under 750: no impact feesCalifornia bars impact fees on ADUs under 750 sq ft, which makes this size a sweet spot for cost.

The Harbor

2 bed · 1 bath · 720 sq ft

$209,000starting*

The Goat 740

1 bed · 1 bath · 740 sq ft

$213,000starting*

The Redwood

1 bed + den · 1 bath · 744 sq ft

$213,000starting*

800–900 sq ft

from $234,000Two bedrooms with space to entertain. Option for a second bath.

The Meadow

2 bed · 1 bath · 850 sq ft

$234,000starting*

The Cedar

2 bed · 2 bath · 900 sq ft

$263,000starting*

900–1,000 sq ft

from $273,000Full-size two- and three-bedroom homes.

The Oak

2 bed · 2 bath · 950 sq ft

$273,000starting*

The Summit

3 bed · 2 bath · 1,000 sq ft

$282,000starting*

1,000–1,200 sq ft

from $301,000The largest detached ADU most California cities allow.

The Vista

2 bed + office · 2 bath · 1,100 sq ft

$301,000starting*

The Grand

3 bed · 2 bath · 1,200 sq ft

$320,000starting*

* Starting price for construction with Core's standard finishes. Plans, permits and utility connections are quoted separately after a site visit.