Washington Revised Code Title 36. Counties § 36.70B.160. Additional project review encouraged--Construction (as amended by 2023 c 333)

(a) A dwelling unit is affordable if it requires payment of monthly housing costs, including utilities other than telephone, of no more than 30 percent of the family's income.

(b) “Dwelling unit” means a residential living unit that provides complete independent living facilities for one or more persons and that includes permanent provisions for living, sleeping, eating, cooking, and sanitation, and that is sold or rented separately from other dwelling units.

(c) “Low-income household” means a single person, family, or unrelated persons living together whose adjusted income is less than 80 percent of the median family income, adjusted for household size, for the county where the household is located, as reported by the United States department of housing and urban development, or less than 80 percent of the city's median income if the project is located in the city, the city has median income of more than 20 percent above the county median income, and the city has adopted an alternative local median income.

(d) “Moderate-income household” means a single person, family, or unrelated persons living together whose adjusted income is at or below 120 percent of the median household income, adjusted for household size, for the county where the household is located, as reported by the United States department of housing and urban development, or less than 120 percent of the city's median income if the project is located in the city, the city has median income of more than 20 percent above the county median income, and the city has adopted an alternative local median income.