Permits and Inspections for Concrete Work in Seattle

Concrete permit requirements vary by city and project type. Some projects can move ahead without permits, while others require plan review and inspections. Use this guide to understand the common triggers and plan your timeline.

Projects that often require permits

• New or expanded driveways: especially if the work impacts the curb, sidewalk, or right of way.
• Structural slabs or foundations: new builds, additions, or major structural work.
• Retaining walls: taller walls or walls supporting significant loads.
• Commercial access upgrades: ADA ramps, loading areas, or site improvements.
• Drainage changes: projects that redirect water or modify grading.

Common inspection checkpoints

Inspectors may review base preparation, reinforcement placement, and overall form layout before the pour. A final inspection may occur after the concrete is placed and access points are finished.

How a contractor helps with compliance

A local contractor can advise on documentation, coordinate inspection timing, and align the work with city standards. If you are planning a driveway, patio, or foundation project, ask about permit requirements early.

Plan for added lead time

Permits and inspections can add days or weeks to the schedule depending on project complexity. Review our project timeline and curing guide to build a realistic schedule around weather and approvals.

Get help from a Seattle concrete contractor

Seattle Concrete can help you evaluate permit needs and plan a smooth installation. Explore our concrete services in Seattle to get started.