Spokane County, WA Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- Low Density coverage max
- 55% of lot area
- Low Density Plus coverage max
- 55% of lot area
- Medium Density coverage max
- 65% of lot area
- High Density coverage max
- 70% of lot area
- Code section
- SCC 14.606.300 Table 606-3
Summary
In Spokane County, maximum building coverage is 55% of lot area in the Low Density and Low Density Plus Residential zones, 65% in Medium Density Residential, and 70% in High Density Residential, under SCC 14.606.300, Table 606-3.
Max. Building Coverage: 55% of lot area (Low Density and Low Density Plus Residential), 65% of lot area (Medium Density Residential), 70% of lot area (High Density Residential).
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 63).
Full Breakdown
SCC 14.606.300 (Table 606-3) sets maximum building coverage at 55% of lot area in the Low Density and Low Density Plus Residential zones, 65% in Medium Density Residential, and 70% in High Density Residential. Per SCC 14.300, building coverage is the area of a lot occupied by a main building or structure and its accessory buildings, not including patios, driveways, open steps and buttresses, terraces, cornices, and ornamental features projecting from the building that are not supported by the ground. Minimum lot area and frontage also apply by zone and use. These are county standards for unincorporated land; incorporated cities set their own coverage limits.
Violations & Fines
Exceeding the maximum building coverage requires a variance or plan revision; coverage is verified against Table 606-3 before a building permit is issued.
Frequently Asked Questions
How much of my lot can I build on?
Do driveways and patios count toward coverage?
Sources & Official References
Other rules in Spokane County
Compare Spokane County to another location·View the Washington building setbacks & zoning overview
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