Budget planning guide

Retaining Wall cost in Seattle, WA

A transparent starter-scope range for homeowners planning retaining wall in Seattle, WA. Review the assumptions, then use the project estimator for your own scope.

Starter-scope range

$4,300$6,070

Planning midpoint: $5,060

The planning model applies a higher regional cost factor for this market.

What the model includes

Starter scope and assumptions

Adjust quantities for your project

Wall Block Material

150 sq ft × $19.5

$2,930

Gravel Backfill

3 ton × $58.5

$180

Labor

20 hr × $97.5

$1,950

This is a budgeting example based on a defined starter scope, not a quote or a live survey of local bids. Actual pricing depends on measurements, site conditions, material choices, permits, contractor availability, and the final scope.