19.42.100 Density calculations.
A. Calculations for Determining Minimum Density. The density minimum standard applies to single-purpose residential developments (mixed-use developments are exempt). All site areas applicable to the residential development must be used in the calculation of minimum allowed residential density except the following:
1. Street right-of-way, or other areas reserved or dedicated for public use (such as parks, open space, and stormwater facilities).
2. Submerged lands, landslide hazard areas and buffers, regulated wetlands and buffers, and Types 1, 2, 3, and 4 streams and buffers.
B. Calculations for Determining Maximum Density.
1. Maximum density for residential zones applies to all development with new residential dwelling units, unless otherwise noted herein.
2. Gross acreage of the site may be used in the calculation of the maximum allowed residential density (including half of existing street right-of-way around the perimeter of the site and any new street right-of-way internal to the site).
3. For the purpose of meeting maximum density requirements for subdivisions in applicable zones, final plats must specify the maximum number of dwelling units per lot.
C. How to Calculate Density. Minimum and maximum density for an individual site must be calculated by multiplying the total site acreage based on subsections A and/or B of this section by the minimum and maximum dwelling units per acre for the applicable zone. When calculation results in a fraction, the fraction must be rounded to the nearest whole number as follows:
1. Fractions of one-half and above must be rounded up.
2. Fractions below one-half must be rounded down.
D. Prohibited Reduction. Any portion of a lot that was used to calculate minimum compliance with the standards and regulations of this title must not be subsequently subdivided or segregated from such lot unless all portions of the resulting lots continue to meet the code requirements after the subdivision. (Ord. 3040 § 2 (Att. A), 2019)