Building Setbacks & Zoning in Grant County, WA (2026)
2 rules for unincorporated Grant County, Washington.
Verified from official government sources
Setback Rules
Grant County's Unified Development Code layers a special buffer setback on top of the base zone setback whenever a residential lot borders farmland or mineral land: 60 feet from commercial agriculture in rural zones, and 100 feet from land zoned Agricultural or Mineral Resource Overlay.
Setbacks from Farm and Mineral Land, Grant County
Some RestrictionsGrant County Unified Development Code § 23.12.070(k)(1)
(k)Special Setback from Agricultural (AG) and Mineral Resource Overlay (MRO) Zoning Districts: To provide a buffer between resource lands or uses and adjacent non-resource land uses, the following additional setback shall apply.(1)Where any existing or proposed lot borders on a parcel zoned Agricultural (AG) or Mineral Resource Overlay (MRO), a building setback for all residential land uses and...
Structure Height Limits
Grant County caps building height by zoning district in the tables to its Unified Development Code, and Table 1's Note 17 sets the standard formula: a 45-foot base limit with one extra foot of height allowed for every extra foot of setback, up to 80 feet.
Building Height Limits, Grant County UDC
Some RestrictionsGrant County Unified Development Code § 23.12.070(i), Table 1 Note 17
(i)Height of Buildings and Structures: Height limitations for buildings and structures shall be as specified in Tables 1, 2 and 3 at the end of this Chapter for the various zoning districts. Height may be further limited within areas designated as Airport Safety Overlay (ASO) zoning districts (see GCC § 23.04.645). Height limitations shall generally not apply to accessory projections such as st...
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