Land Use & Zoning
A Washington property is zoned for residential use. The owner wants to add an Accessory Dwelling Unit (ADU). Under a 2023 Washington State law (SB 5235), cities and counties:
AMay prohibit ADUs in all single-family zones
BMust allow ADUs in all areas zoned for single-family residential✓ Correct
CMay require owner-occupancy as a condition of ADU approval
DMay limit ADU size to 400 square feet
Explanation
Washington's 2023 ADU legislation (SB 5235/RCW 36.70A) requires cities and counties to allow ADUs in all areas zoned for single-family residential development and prohibits many restrictive conditions that previously limited ADU construction.
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