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Cowlitz County Unincorporated
City Zoning Code

18.10.541 Multiple-family residential development

Minimum lot size.

Minimum lot size for multiple-family dwellings in all zoned or unzoned areas shall be calculated as indicated in Table 18.10.541. However, larger lot sizes may be required by other regulations, including building codes, fire codes or regulations governing sewage disposal or water service.

Table 18.10.541

Number of Units

Minimum Lot Size

2 – 3

6,000 square feet.

4 – 6

6,000 square feet, plus 1,500 square feet per unit in excess of 3 units.

7 or More

10,500 square feet, plus 1,000 square feet per unit in excess of 6 units.

For example: a four-unit multiple-family dwelling development requires a lot size of 7,500 square feet, a six-unit multiple-family dwelling development requires a lot size of 10,500 square feet, and an eight-unit multiple-family development requires a lot size of 12,500 square feet.

[Ord. 22-078, § 1, 8-16-22.]