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City of San Mateo Municipal Code.

27.22.100 OPEN SPACE REQUIREMENTS.

(a) The open space requirements of this district are in addition to any open space requirements resulting from the approval and filing of a subdivision map, or any open space requirements imposed upon a planned development in accord with the general plan. Open space required by this section is intended to be for the use and enjoyment of the residents of the multiple-family project.

(b) Not less than two hundred (200) square feet per bedroom of open parcel area, exclusive of any required off-street parking areas or driveways, shall be provided for the first bedroom in each dwelling unit and at least one hundred (100) square feet per bedroom of open parcel area, exclusive of any required off-street parking areas or driveways, shall be provided for each bedroom after the first bedroom in each dwelling unit.

(c) The required open parcel area for each ground floor dwelling unit shall be continuous thereto, and shall have a minimum dimension of not less than ten feet (10') in any direction. Such open parcel area may include the required minimum yard areas set forth in this chapter. Where provision of contiguous open space for ground floor units conflicts with required fire department access, a redistribution of open space may be required, subject to the approval of the fire chief.

(d) Open roof decks, balconies, lanais or other open structural areas made a part of the building and improved for outdoor living, may be used to satisfy the open parcel area requirements for each dwelling unit above the ground floor provided that the open roof deck, balcony, lanai, or other open structural area contains a usable area of not less than one hundred (100) square feet and is not less than six feet (6') in any dimension. Required open space for units above the ground floor may be combined for several units and located on the ground.

Whether or not required open space is combined, it may be located in whole or in part on the ground, provided that the minimum dimension is ten feet (10') in any direction. Such open space need not be contiguous to the building.

(e) The proposed improvement of all required open parcel area (garden patios) or roof decks, balconies, lanais or other structural areas intended for outdoor living shall be designated on plans submitted with planning applications, and upon the approval of such plans shall be considered a required part of the site and structural improvements.