Spokane Zoning Overview

Spokane is the second-largest city in Washington with approximately 228,989 residents, located in Spokane County. The city manages land use and development through its zoning code, administered by the Spokane Planning Department. Spokane's zoning divides the municipality into districts regulating permitted uses, building heights, lot sizes, setbacks, and density.

Spokane follows the Washington State Building Code (WAC 51-50/51), which is based on the International Building Code (IBC) and International Residential Code (IRC).

Primary Zoning Districts

Spokane's zoning code includes several residential districts. The RSF (Residential Single-Family) district requires a minimum lot size of 7,000 square feet with a 35-foot height limit and setbacks of 20 feet (front), 5 feet (side), and 25 feet (rear). The RSF-C (Residential Single-Family Compact) district allows smaller lots of 4,500 square feet with reduced setbacks.

The RMF (Residential Multi-Family) district accommodates higher-density housing including apartments and townhouses. Commercial activity is served by the CB (Center & Corridor - Business) and GC (General Commercial) districts. Industrial uses are provided for in the LI (Light Industrial) and HI (Heavy Industrial) districts.

ADU (Accessory Dwelling Unit) Rules

Spokane allows ADUs (Accessory Dwelling Units). Under Washington state law HB 1337 (2023), cities are required to allow ADUs, with up to 2 ADUs permitted per lot in most areas. This is a state mandate that applies to all Washington cities. Contact the Spokane Planning Department for current requirements including size limits, setbacks, owner-occupancy rules, and permitting procedures.

Development Process

Development in Spokane generally requires obtaining the appropriate permits. The process typically involves:

1. Zoning Verification — Confirm that your proposed use is permitted in the applicable zoning district
2. Site Plan Review — For commercial and multi-family projects, submit a site plan for review
3. Building Permit — Apply for a building permit with construction documents
4. Inspections — Schedule required inspections during construction
5. Certificate of Occupancy — Obtain final approval before occupying the structure

For projects that do not conform to existing zoning, property owners may need to seek a variance, special exception, or rezoning through the local board of zoning appeals or planning commission.

Key Considerations

Before starting any development project in Spokane, property owners should:

• Verify the zoning classification of their property
• Review setback, height, and lot coverage requirements for their specific district
• Check for any overlay districts or special regulations
• Determine if the property is in a flood zone using FEMA's flood map service
• Confirm whether HOA covenants or deed restrictions apply
• Contact the Planning Department at (509) 625-6300 for pre-application guidance

Disclaimer: This guide provides general information about zoning in Spokane and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations with the City of Spokane or the municipal code before making development decisions.