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(1) Except as provided in subsection (2) of this section, a minimum net density of four dwelling units per acre shall be required in all UGAs for:

(a) New subdivisions, short subdivisions, PRDs, townhouse and mixed townhouse developments, and mobile home parks; and

(b) New residential development in the LDMR, MR, and Townhouse zones.

(2) A minimum net density of 15 dwelling units per acre shall be required for new residential development in the MR, NB, PCB, CB and GC zones in the Southwest UGA where any portion of the site is within 2,000 feet of the western edge of the right-of-way of State Route 99 or within 800 feet of the eastern edge of the right-of-way of State Route 99; and the site is east of State Route 525. For sites that are one acre or less in size, the director may administratively approve a reduction in the minimum net density, provided that the applicant demonstrates one or more of the following:

(a) The site is constrained due to its unusual shape, topography, easements, or critical areas and the minimum net density cannot be achieved;

(b) The required setbacks do not allow the minimum net density to be achieved; or

(c) The project contains both residential and non-residential uses.

(3) Minimum net density is the density of development excluding roads, drainage detention/retention areas, biofiltration swales, areas required for public use, and critical areas and their required buffers pursuant to chapters 30.62A and 30.62B SCC.

(4) Minimum net density is determined by rounding up to the next whole unit or lot when a fraction of a unit or lot is 0.5 or greater.

(5) For new subdivisions and short subdivisions, the minimum lot size of the underlying zone may be reduced as necessary to allow a lot yield that meets the minimum density requirement. Each lot shall be at least 6,000 square feet, except as otherwise allowed by this title.

(6) The minimum net density requirement of this section shall not apply:

(a) In the Darrington, Index, and Gold Bar UGAs; and

(b) Where sewerage regulations, SCC 30.29.100, require a lesser density. (Added by Amended Ord. 02-064, Dec. 9, 2002, Eff date Feb. 1, 2003; Amended by Amended Ord. 06-061, Aug. 1, 2007, Eff date Oct. 1, 2007; Amended by Ord. 17-062, Oct. 18, 2017, Eff date Dec. 17, 2017; Amended by Amended Ord. 18-026, May 23, 2018, Eff date June 11, 2018; Amended by Ord. 22-020, June 1, 2022, Eff date June 12, 2022).