Concord ADU Laws & Regulations

 

Zoning

R-1/R-2

Lot Size

If the lot is less than 12,000 sq. ft. in net area, ADUs are limited to 150 sq. ft. to 640 sq. ft. For lots greater than 12,000 sq. ft. in net area, ADUs can be up to 1,200 sq. ft. An accessory dwelling unit constructed as an addition to an existing residence is limited to 50% of the existing floor area of the primary residence.

Maximum ADU Floor area

1200sf

Rear Yard Coverage

ADUs shall comply with the maximum lot coverage allowance in zoning districts where lot-coverage standards apply. Lot coverage may be exceeded for an ADU with a gross

floor area of up to 800 square feet and for an additional 150 square feet to accommodate

for ingress and egress.

No. Bedrooms

2 bedrooms

Kitchen

Full kitchen facility required (permanent range, counter, refrigerator, sink)

Bath

Required

Parking

“One off-street parking space per ADU is required. These spaces may be provided by a garage or carport, as tandem parking on a driveway. Only uncovered spaces may be located in setback areas. The required parking can be waived if findings are made that parking is not feasible.

Setbacks

Front

Side

Rear


Established by Zoning District

4ft

4ft

Height

16ft

Design

Accessory dwelling units must be subordinate to the primary structure by size, location, and appearance

Entryways

Required

Second Address

ACA instructions