Building site requirements in the RM zone are as follows.
(A)
A use permit or hill area residential development permit (HRD) shall be first secured for any use, occupancy or physical improvement of or on a building site failing to meet the following requirements:
(1) Minimum area of 7,500 square feet and a minimum width of 60 feet with a slope of ten percent or less;
(2) The minimum building site area shall be increased by 600 square feet for each one percent increase in slope over ten percent to and including 15 percent, and the minimum width shall be increased by eight feet for each 600 square feet of additional area required, so that a building site having a slope of 15 percent shall have a minimum area of 10,500 square feet and a minimum width of 100 feet;
(3) Building sites having a slope of more than 15 percent shall increase in area above 10,500 square feet and a minimum width above 100 feet, at the rate of 1,200 square feet of area and five feet of width for each one percent increase in slope.
(B)
Each building site containing three or more dwelling units shall contain not less than 300 square feet of common or private open space for each dwelling unit, of which at least 60 square feet shall be private open space serving individual dwelling units. The open space shall conform to the following standards:
(1) None of the following shall be counted as a part of the open space required by this section: required yards or setbacks from a property line; separations required between buildings containing dwelling units; an open area, access area or other space required by any other ordinance of the town, such as a building code or safety code (parking areas and driveways); any area less than ten feet in width; any area having a finished grade of more than ten percent;
(2)
The following shall be counted as a part of the open space required by this section: patios with a minimum dimension of ten feet and decks and balconies with a minimum dimension of six feet which serve individual dwelling units; courtyards or other open spaces having minimum dimensions of ten feet, uncovered swimming pools, tennis courts, gym and fitness facilities, indoor space for yoga, dance and instruction, and similar recreation areas, and tot lots; landscape areas having minimum dimensions of less than ten feet but at least five feet at any point which are contiguous with and an integral part of the common open space or are connected to the common open space by walkways, may be included in calculating the area of such space.
(3) Any area or space which qualifies as a part of the open space required by this section shall continue to be counted as such if it is landscaped;
(4) Not more than two-thirds of the total amount of open space required on any building site may be consolidated into a single open area; and
(5)
The amount of open space required for a building site by this section is a minimum requirement and cannot be reduced unless needed as a concession or incentive for an affordable housing density bonus under the provisions of Chapter 17.050 or a waiver is granted under the provisions of Chapter 17.044, which include waivers to comply with reasonable accommodation provisions of state and/or federal law under the provisions of Chapter 17.044.
(Prior Code, § 17.46.050) (Ord. 352, passed - -1973; Am. Ord. 605, passed - -1991; Am. Ord. 885, passed 11-1-2023)