City of San Mateo Law Library
City of San Mateo Municipal Code.

27.04.165 DWELLING.

"Dwelling" means a building or portion thereof, designed or used exclusively for residential occupancy, including a one-family dwelling unit, an accessory dwelling unit, a junior accessory unit, a two-family dwelling unit, and a multiple-family dwelling unit but does not include a hotel, motel, boarding or lodging houses or other lodging facilities, or a vessel or boat, or a house trailer.

(a) "Accessory dwelling unit" means an attached or detached residential dwelling unit which provides complete independent living facilities for one or more persons, is accessory to the primary single-family residential dwelling unit, and includes permanent provisions for living, sleeping, eating, cooking facilities and sanitation on the same parcel as the primary residential dwelling unit.

(b) "Bachelor, efficiency or studio unit" means a dwelling unit consisting of one principal room used for living and sleeping purposes, plus cooking facilities, a bathroom, and closets.

(c) "Junior accessory dwelling unit" means an additional, independent living unit constructed within the walls of a proposed or legally existing single-family residence, including attached garages.

(d) "Multiple-family dwelling" means a building or portion thereof, designed or altered for occupancy by three or more families living independently of each other.

(e) "One-family dwelling" means a building containing one cooking facility only and designed exclusively for use and occupancy by one family, including the provision of interior access to all bedrooms, and may include a junior accessory dwelling unit within the principal dwelling.

(f) "Two-family dwelling" means a building(s) designed or altered to provide attached (duplex) or detached dwelling units for occupancy by two families living independently of each other.