Redwood City, CA

Accessory Dwelling Unit (ADU) Regulations


Zoning:

RH/R-1/R-2/R-3/R-4/R-5

Lot size:

No min/max but must follow zoning guidelines on lot coverage, lot must have existing or proposed single-family dwelling.

Maximum ADU Floor Area:

700 sq.ft., 800 sq.ft. for ADUs that meet 11A Standards on accessibility

900 sq.ft. for ADUs on RH or R-1 lots larger than 9,999 sq.ft.

No. of Bedrooms:

No min/max

Storage/Closet:

No min/max

Kitchen/Bath:

Require separate bathroom and kitchen facilities (must be a stove/oven, 220 amp circuits, sink and food preserving appliance.  Wet bars with countertop ovens are not acceptable.

Parking:

No additional parking required.

Setbacks:

Attached:  must meet height standards for underlying zoning district.

Detached: must be 10' from rear property line, at least 6' from any other structure and meet minimum side yard setback for zoning district.

Height:

Attached:  must meet height standards for underlying zoning district.

Detached: 14'

Location:

May be attached to house or detached in rear yard.

Rear Yard Coverage:

50% max.

Materials/Design:

Must be architecturally compatible with style, exterior paint and materials of single-family dwelling on same lot.

Entryways:

Garage or patio doors may not be used as main entrance, unit must be accessed by a side-hinged swinging door.

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