WA HB1859

Cities and counties must allow increased density bonuses for affordable housing on religious organization properties where at least 50% of units serve low-income households (at or below 80% of area median income) with housing costs not exceeding 30% of household income

Changes requirement from "may" to "must" for local governments to develop policies implementing density bonuses when religious organizations request them for affordable housing projects

At least 50% of housing units must remain affordable for a minimum of 50 years through binding lease or covenant, even if the religious organization sells the property

Creates sales and use tax exemptions for construction, repair, and improvement of affordable housing projects owned by or partnered with nonprofit religious organizations, effective October 1, 2025 through January 1, 2036

Affordable housing developments must comply with federal fair housing laws and may not discriminate based on race, creed, color, national origin, sex, veteran status, sexual orientation, or disability