900 Poplar Pl S, Seattle, WA 98144

Commercial · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise office, 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 AI estimate from public imagery; may be outdated.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 1,256 reachable commercial buildings in Seattle. Larger than 81% of commercial buildings in Seattle (median 13,352 SF), derived from assessor records.

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Building size: 70,728 SF, King County Assessor
Lot size: 62,412 SF, King County Assessor
Year built: 1970, King County Assessor
Stories: 3, King County Assessor
Predominant use: Sports And Rec-Health Club + Office, King County Assessor
Assessed value: $15,126,700, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $213.87/SF, derived from assessor records
Lot coverage: 113%, derived from assessor records
Vintage: 1970s vintage
Zoning: NC3-75 (M2), King County
County use code: Health Club
Construction (observed): metal, AI estimate from public imagery
Parking (observed): surface lot, AI estimate from public imagery
Frontage (observed): interior, AI estimate from public imagery

Nearby comparable buildings

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

1855 S Lane St, Seattle · 0.3 mi · 9,626 SF · built 2005 · assessed $412.48/SF
1414 S Weller St, Seattle · 0.3 mi · 18,592 SF · built 1910 · assessed $231.20/SF
511 16th Ave S, Seattle · 0.3 mi · 5,900 SF · built 1910 · assessed $408.92/SF
1419 S Jackson St, Seattle · 0.4 mi · 14,700 SF · built 1925 · assessed $200.64/SF
1701 18th Ave S, Seattle · 0.4 mi · 33,332 SF · built 1966 · assessed $273.37/SF
800C 23rd Ave S, Seattle · 0.4 mi · 1,254 SF · built 2023 · assessed $390/SF

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Sale history and market context

MakeMe Estimate: $17,219,090 (estimated market value), with a likely range of $14,591,421 to $21,053,050 (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: 2017-05-15 for $10,300,000 (recorded arm's-length sale).

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

2017-05-15: $10,300,000 from H-P Properties to Madisonian Manager LLC, rec. 20170515000571

2007-05-05: $6,750,000 from Private party to H-P Properties/Poplar LLC, rec. 20070515002687

1997-09-09: $3,680,000 from Poplar Place Associates to Robinson Midway Property LLC (non-market transfer), rec. 199709220898

1997-09-09: $920,000 from Poplar Place Associates to Robinson Times Properties LLC (non-market transfer), rec. 199709220899

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 $6,744,700 (2011) to $15,126,700 (2026), up 124% over 15 years, per county tax rolls. The 2026 roll splits $15,126,700 into $12,482,400 land and $2,644,300 improvements.

Zoning: NC3-75 (M2) (per King County)

Lot: 62,412 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Storage Warehouse 45,561 SF; Office Building 25,167 SF (county building sections)

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

Permit history

2025-07-08: Electrical, declared value $2,000 (Screened), permit 7095102-EL

2024-06-18: Electrical, declared value $2,000 (Screened), permit 7031193-EL

2024-01-22: Electrical, declared value $5,000 (Screened), permit 7005657-EL

2024-01-05: Remodel, declared value $57,665 (Screened), permit 7003374-CN

2023-05-12: Electrical, declared value $15,000 (Screened), permit 6964253-EL

2017-11-30: Remodel, declared value $500,000 (Complete), permit 6600620

2015-12-01: Remodel, declared value $500,000 (Screened), permit 6464821

2013-10-10: Remodel, declared value $291,239 (Complete), permit 6359907

2013-04-12: Remodel, declared value $406,000 (Complete), permit 6345096

2011-02-02: Remodel, declared value $145,000 (Complete), permit 6251693

Source: King County permit records (newest first).