4517 40th Ave SW, Seattle, WA 98116

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise apartments, appears multi-tenant. AI estimate from public imagery. In recent public imagery (2026-06), the building appears well maintained. AI estimate from public imagery; may be outdated.

One of 5,391 reachable multifamily buildings in Seattle. Larger than 12% of multifamily buildings in Seattle (median 9,444 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: 3,836 SF, King County Assessor
Lot size: 5,750 SF, King County Assessor
Year built: 1994, King County Assessor
Stories: 2, King County Assessor
Predominant use: Fourplex, King County Assessor
Units: 4, King County Assessor
Assessed value: $1,155,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $301.09/SF, derived from assessor records
Lot coverage: 67%, derived from assessor records
Vintage: 1990s vintage
Zoning: LR2 (M), King County
County use code: 4-Plex
Parking (observed): surface lot, AI estimate from public imagery
Frontage (observed): mid block, AI estimate from public imagery

Nearby comparable buildings

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

4532 42nd Ave SW, Seattle · 0.1 mi · 85,803 SF · built 2018 · assessed $213.14/SF
4505 42nd Ave SW, Seattle · 0.1 mi · 49,031 SF · built 2017 · assessed $302.18/SF
4545 42nd Ave SW, Seattle · 0.1 mi · 82,876 SF · built 1979 · assessed $207.26/SF
4508 California Ave SW, Seattle · 0.1 mi · 55,907 SF · built 2023 · assessed $279.46/SF
4417 42nd Ave SW, Seattle · 0.1 mi · 47,000 SF · built 2020 · assessed $337.98/SF
4448 California Ave SW, Seattle · 0.2 mi · 3,552 SF · built 1956 · assessed $364.10/SF

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: $1,288,902 (estimated market value), with a likely range of $1,144,142 to $1,470,279 (half of recent verified sales in this segment landed inside that range). Based on 667 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works. About $322K per unit at the midpoint (4 units).

Last sold: 2016-02-24 for $950,000 (recorded arm's-length sale).

Current ownership dates to 2016 (about 10 years) per recorded transfers.

2016-11-04: transfer from Private party to 4517 40th Ave SW LLC (non-market transfer), rec. 20161216001180

2016-02-24: $950,000 from Private party to Private party, rec. 20160229002020

2010-08-05: $610,000 from Private party to Private party, rec. 20100810001265

1999-12-29: $460,000 from Private party to Private party, rec. 19991230001440

2 administrative transfers (no consideration), 1994 to 1999

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

Value over time

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 $530,000 (2011) to $1,155,000 (2026), up 118% over 15 years, per county tax rolls. The 2026 roll splits $1,155,000 into $920,000 land and $235,000 improvements.

Zoning: LR2 (M) (per King County)

Lot: 5,750 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Floor and use mix: Multiple Residence (Low Rise) 3,836 SF (county building sections)

County districts report (schools, fire, sewer, council; on kingcounty.gov)