4400 California Ave SW, Seattle, WA 98116

Office · Seattle · Seattle-Bellevue metro, WA

One of 957 reachable office buildings in Seattle. Larger than 35% of office buildings in Seattle (median 20,410 SF), derived from assessor records.

Own this building?

Claim privately

Claiming is for you. Your mailing address is never shown; no offer reaches you unless you opt in.

Claimed owners can confirm facts, watch the estimate, and decide whether to reply.

Claim or manage this building
Building size
9,031 SF, King County Assessor
Lot size
11,500 SF, King County Assessor
Year built
1910, King County Assessor
Stories
1, King County Assessor
Buildings on parcel
3, King County Assessor
Predominant use
Dental Clinic/Espresso/Sfr, King County Assessor
Assessed value
$2,865,300, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$317.27/SF, derived from assessor records
Lot coverage
79%, derived from assessor records
Vintage
pre-war vintage
Zoning
NC2-75 (M), King County
County use code
Medical/Dental Office
Construction (observed)
masonry, AI estimate from public imagery
Parking (observed)
none visible, AI estimate from public imagery

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

Want to talk to the owner? makeme1031 delivers a private, principal-to-principal letter to the owner of record. We never publish the owner's identity or address.

Sale history and market context

MakeMe Estimate: $3,278,458 (estimated market value), with a likely range of $2,962,913 to $4,271,675 (half of recent verified sales in this segment landed inside that range). Based on 55 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2002-02-22 for $650,000 (recorded arm's-length sale).

Current ownership dates to 2002 (about 24 years) per recorded transfers.

Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.

Value over time

$1.38M$2.75M$4.13M$5.51M201120142017202020232026County appraised valueEstimated value (modeled range)

Solid line: county appraised value per King County tax rolls. Shaded range: our modeled estimate for each year, built from recorded arm's-length sales in the building's segment; years without enough sales stay unmodeled. Dots: recorded arm's-length sales. Not an appraisal. How this estimate works.

Land, site, and value history

Assessed value moved from $2,350,700 (2011) to $2,865,300 (2026), up 22% over 15 years, per county tax rolls. The 2026 roll splits $2,865,300 into $2,760,000 land and $105,300 improvements.

Taxes