4820 40th Ave SW, Seattle, WA 98116

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: daycare/school. 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 AI estimate from public imagery; may be outdated.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 24% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 5,169 SF, King County Assessor
Lot size: 6,600 SF, King County Assessor
Year built: 1952, King County Assessor
Stories: 2, King County Assessor
Predominant use: Sfr-Now 4-Plex, King County Assessor
Units: 4, King County Assessor
Assessed value: $1,117,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $216.10/SF, derived from assessor records
Lot coverage: 78%, derived from assessor records
Vintage: 1950s vintage
Zoning: LR2 (M), King County
County use code: 4-Plex
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): street only, AI estimate from public imagery

Nearby comparable buildings

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

4821 Fauntleroy Way SW, Seattle · 0 mi · 21,596 SF · built 1957 · assessed $266.48/SF
4001 SW Edmunds St, Seattle · 0 mi · 6,891 SF · built 1987 · assessed $365.69/SF
4801 Fauntleroy Way SW, Seattle · 0.1 mi · 28,910 SF · built 2017 · assessed $366.94/SF
4745 40th Ave SW, Seattle · 0.1 mi · 168,439 SF · built 2015 · assessed $223.39/SF
4857 Fauntleroy Way SW, Seattle · 0.1 mi · 7,483 SF · built 1957 · assessed $344.38/SF
4830 Fauntleroy Way SW, Seattle · 0.1 mi · 24,664 SF · built 1986 · assessed $314.10/SF

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Sale history and market context

MakeMe Estimate: $1,284,603 (estimated market value), with a likely range of $1,140,326 to $1,465,375 (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 $321K per unit at the midpoint (4 units).

Last sold: 2016-10-07 for $1,174,600 (recorded arm's-length sale).

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

2016-10-07: $1,174,600 from Private party to Private party, rec. 20161011001716

2 administrative transfers (no consideration), 2000 to 2000

1998-03-24: $220,000 from Private party to Private party, rec. 199803252103

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 $608,200 (2011) to $1,117,000 (2026), up 84% over 15 years, per county tax rolls. The 2026 roll splits $1,117,000 into $1,056,000 land and $61,000 improvements.

Zoning: LR2 (M) (per King County)

Lot: 6,600 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 5,169 SF (county building sections)

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