11504 NE 21st St, Bellevue, WA 98004

Commercial · Bellevue · Seattle-Bellevue metro, WA

Imagery suggests: small office. 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 AI estimate from public imagery; may be outdated.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 201 reachable commercial buildings in Bellevue. Larger than 14% of commercial buildings in Bellevue (median 16,463 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: 2,640 SF, King County Assessor
Lot size: 9,607 SF, King County Assessor
Year built: 1968, King County Assessor
Stories: 1, King County Assessor
Predominant use: Sfr, King County Assessor
Assessed value: $1,575,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $596.59/SF, derived from assessor records
Lot coverage: 27%, derived from assessor records
Vintage: 1960s vintage
Zoning: BR-MO, King County
County use code: Single Family(C/I Zone)
Construction (observed): wood frame, AI estimate from public imagery
Parking (observed): surface lot, AI estimate from public imagery

Nearby comparable buildings

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

11418 NE 21st St, Bellevue · 0 mi · 2,750 SF · built 1977 · assessed $722/SF
11520 NE 20th St, Bellevue · 0.1 mi · 2,214 SF · built 1967 · assessed $900/SF
11420 NE 20th St, Bellevue · 0.1 mi · 1,760 SF · built 1958 · assessed $950/SF
11502 NE 20th St, Bellevue · 0.1 mi · 2,978 SF · built 1956 · assessed $535.59/SF
2188 116th Ave NE, Bellevue · 0.1 mi · 181,155 SF · built 2024 · assessed $370.20/SF
11501 NE 20th St, Bellevue · 0.1 mi · 1,750 SF · built 1959 · assessed $924.97/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: $2,001,074 (estimated market value), with a likely range of $1,695,706 to $2,446,628 (half of recent verified sales in this segment landed inside that range). Based on 139 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 1993-03-02 for $145,000 (recorded arm's-length sale).

Current ownership dates to 2017 (about 9 years) per recorded transfers.

2017-12-20: $1,300,000 from Private party to Lifezone Healthcare LLC, rec.

2 administrative transfers (no consideration), 2004 to 2017

1993-03-02: $145,000 from Private party to Branson Brokerage INC, rec. 199303051419

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 $650,300 (2011) to $1,575,000 (2026), up 142% over 15 years, per county tax rolls. The 2026 roll splits $1,575,000 into $1,296,900 land and $278,100 improvements.

Zoning: BR-MO (per King County)

Lot: 9,607 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 1,320 SF; Basement, Finished 1,320 SF (county building sections)

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