Budget planning guide

Sunroom Addition cost in Seattle, WA

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

Starter-scope range

$27,270–$38,500

Planning midpoint: $32,080

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

Sunroom Kit & Glass Panels

200 sq ft × $110.5

$22,100

Foundation & Flooring

200 sq ft × $15.6

$3,120

Electrical & HVAC Tie-In

1 lump sum × $1,560

$1,560

Labor (full build)

48 hr × $110.5

$5,300

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.

Local guides

Compare starter scopes by city

New York, NYLos Angeles, CAChicago, ILHouston, TXPhoenix, AZPhiladelphia, PASan Antonio, TXSan Diego, CA

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