925 4th Ave, Seattle, WA 98104

Office · 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 AI estimate from public imagery; may be outdated.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 957 reachable office buildings in Seattle. Larger than 99% of office buildings in Seattle (median 20,410 SF), derived from assessor records.

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Building size: 1,052,469 SF, King County Assessor
Lot size: 42,840 SF, King County Assessor
Year built: 2002, King County Assessor
Stories: 37, King County Assessor
Predominant use: Fourth & Madison (IDX Tower), King County Assessor
Assessed value: $211,477,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $200.93/SF, derived from assessor records
Lot coverage: 2457%, derived from assessor records
Vintage: 2000s vintage
Zoning: DOC1 U/450/U, King County
County use code: Office Building
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): structured, 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.

1001 4th Ave, Seattle · 0.1 mi · 1,179,473 SF · built 1969 · assessed $168.46/SF
999 3rd Ave, Seattle · 0.1 mi · 1,325,986 SF · built 1983 · assessed $169.66/SF
909 5th Ave, Seattle · 0.1 mi · 777,268 SF · built 1973 · assessed $170.21/SF
1015 3rd Ave, Seattle · 0.1 mi · 293,576 SF · built 1998 · assessed $204.20/SF
1000 2nd Ave, Seattle · 0.1 mi · 589,921 SF · built 1986 · assessed $203.80/SF
808 2nd Ave, Seattle · 0.1 mi · 95,373 SF · built 1906 · assessed $130.14/SF

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Sale history and market context

MakeMe Estimate: $175,422,914 (estimated market value), with a likely range of $158,538,833 to $228,567,755 (half of recent verified sales in this segment landed inside that range). Based on 12 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Current ownership dates to 2023 (about 3 years) per recorded transfers.

2 administrative transfers (no consideration), 2013 to 2023

2004-12-21: $340,745,187 from Nop Idx Tower LP to Teachers Insurance & Annuity Association of Americ… (part of a 5-parcel sale; price is the whole deal), rec. 20041227002088

3 administrative transfers (no consideration), 2003 to 2003

2000-06-02: $35,000,000 from 350 LLC to National Office Partners L P (part of a 5-parcel sale; price is the whole deal), rec. 20000606000209

1995-09-05: transfer from Urban Site Venture II Limited to Private party (part of a 4-parcel sale; price is the whole deal), rec. 199509150586

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 $191,782,000 (2011) to $211,477,000 (2026), up 10% over 15 years, per county tax rolls. The 2026 roll splits $211,477,000 into $69,168,100 land and $142,308,900 improvements.

Zoning: DOC1 U/450/U (per King County)

Lot: 42,840 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 853,530 SF; Basement, Parking 164,420 SF; Retail Store 34,519 SF (county building sections)

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

Permit history

2025-08-18: Remodel, declared value $1,500, permit 7102243-CN

2025-03-27: Electrical, declared value $279,302 (Revisit), permit 7077799-EL

2025-02-03: Remodel (Screened), permit 7060229-BK

2024-12-26: Remodel, declared value $800,000 (Revisit), permit 7025264-CN

2024-10-30: Remodel, declared value $3,500,000 (Revisit), permit 7026618-CN

2024-10-01: Electrical, declared value $616,909 (Defunct), permit 7048908-EL

2023-11-29: Remodel, declared value $400,000 (Complete), permit 6990926-CN

2022-11-18: Remodel (Screened), permit 6933369-BK

2022-09-15: Remodel, declared value $2,500,000 (Complete), permit 6908862-CN

2021-01-13: Remodel, declared value $50,000 (Complete), permit 6796654-CN

Source: King County permit records (newest first).