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Seattle · 98109

What’s your home worth in South Lake Union & Westlake (98109)?

Tell us your address and a real-estate expert who works in South Lake Union & Westlake will send you a personal estimate based on recent sales near you, not an instant formula. Free, no obligation.

Free, no obligation. A local expert prepares your estimate, with no instant formula guesses.

$747,178

Typical home value

as of September 2026

2,206

Homes tracked here

county records

56%

Owned 10+ years

of homes with sale records

1936

Typical year built

average across the zip

The South Lake Union & Westlake market, in plain terms.

South Lake Union & Westlake remains one of the more approachable corners of the King County market, which keeps buyer interest strong. Values here can shift block by block, so a local expert weighs the sales closest to you rather than averaging the whole zip.

Homes here were typically built around 1936. This is an older, established neighborhood where condition and updates matter as much as square footage. Two houses on the same block can be worth very different amounts depending on what's been done to them.

56% of homes in 98109with sale records have been owned for a decade or more. That means fewer homes hit the market, and when one does, buyers pay attention. If you’ve owned yours for a while, its value has likely moved a long way from what you paid.

Most homes here, about 76% by county valuation, fall between $800,000 and $2 million. In that range, pricing accurately is worth real money, and a neighborhood-level look beats a formula every time.

There’s no cost and no obligation. Enter your address above and a licensed professional who works in Seattle will email you a personal estimate.