Accessory Structures in Lacey, WA (2026)
2 verified accessory structures rules for Lacey, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
In the City of Lacey, Washington, an accessory dwelling unit is limited to fifty percent of the main unit and no more than eight hundred fifty square feet of floor area, and a lot gets only one ADU in addition to the single-family dwelling. An ADU does not count as a dwelling unit for density, must read as subordinate to the house, and needs a pedestrian walkway and at least one parking space.
Lacey Accessory Dwelling Unit Rules
Some RestrictionsLacey Municipal Code § 14.23.071
B. Design Requirements. ... In order to assure that the development of all accessory dwelling units and those accessory structures to which this section is applicable is consistent with policies of the Comprehensive Land Use Plan, the following special design features and provisions shall apply to all accessory dwelling units: 1. Size. An accessory dwelling unit shall be limited in size to fift...
Shed & Carport Rules
In the City of Lacey, Washington, an accessory building under 200 square feet in the Low-Density Residential District may sit with a front yard of sixteen feet, a side yard of five feet and a rear yard of three feet. Accessory building height is limited to the height of the primary building, and structures over sixteen feet in height require design review.
Lacey WA Shed Rules: Size, Setbacks and Height
Some RestrictionsLacey Municipal Code § 16.13.050
Accessory building shall be limited to the height of the primary building, provided structures over sixteen feet in height shall require design review. Design shall demonstrate a compatibility with the primary structure and shall not dominate the site visually. ... 5. Accessory buildings. Accessory buildings shall comply with the current building setbacks as stated in this chapter; provided, ho...
Looking for Thurston County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Lacey city rules.
Accessory Structures in Thurston County →