Redmond's Building Setbacks & Zoning: The Rules That Matter

Every city handles building setbacks & zoning a little differently. In Redmond, Washington, there are 3 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Setback Rules

Redmond single-family setbacks under RMC Title 21 are typically 20 ft front, 5 ft side, and 15-20 ft rear in R-4 and R-6 zones, with reduced setbacks possible in neighborhood infill areas.

Key details: Front (R-4): 20 ft minimum. Side: 5 ft each side. Rear: 15-20 ft typical. Critical areas: Add stream or slope buffer.

Contact your local code enforcement office for specific penalty information.

Lot Coverage Limits

Redmond limits building coverage and impervious surface in residential zones under RMC Title 21 and requires stormwater mitigation over specific thresholds in the Bear Creek and Sammamish basins.

Key details: R-4 building coverage: ~45-50% max. Stormwater trigger: 2,000 sf new impervious. Landscape: 15-35% pervious required. Manual: DOE 2019 Western WA.

Contact your local code enforcement office for specific penalty information.

Structure Height Limits

Redmond caps residential building height around 30-35 feet in R zones under RMC Title 21. Downtown and Overlake urban centers allow mid-rise and high-rise buildings up to 150+ feet.

Key details: R-4 single family: ~30-35 ft max. Multi-family: 30-45 ft. Downtown core: Up to 150+ ft. Overlake: High-rise allowed.

Contact your local code enforcement office for specific penalty information.

The Bottom Line

Redmond's building setbacks & zoning rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Redmond is broadly strict or permissive.

These rules come from Redmond's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.