3941 I St NW, Auburn, WA 98001

Small-Bay Industrial · Auburn · Seattle-Bellevue metro, WA

Imagery suggests: big-box warehouse. 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 AI estimate from public imagery; may be outdated.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 426 reachable small-bay industrial buildings in Auburn. Larger than 96% of small-bay industrial buildings in Auburn (median 18,750 SF), derived from assessor records.

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Building size: 258,920 SF, King County Assessor
Lot size: 486,961 SF, King County Assessor
Year built: 2000, King County Assessor
Stories: 1, King County Assessor
Predominant use: Distribution Warehouse/Office, King County Assessor
Assessed value: $56,072,300, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $216.56/SF, derived from assessor records
Lot coverage: 53%, derived from assessor records
Vintage: 2000s vintage
Zoning: M1, King County
County use code: Warehouse
Construction (observed): tilt up, AI estimate from public imagery
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.

3703 I St NW, Auburn · 0.1 mi · 127,066 SF · built 2000 · assessed $220.24/SF
1201 37th St NW, Auburn · 0.2 mi · 7,536 SF · built 1986 · assessed $657.22/SF
814 44th St NW, Auburn · 0.2 mi · 204,458 SF · built 2007 · assessed $203.03/SF
621 37th St NW, Auburn · 0.2 mi · 20,896 SF · built 1983 · assessed $663.58/SF
1220 37th St NW, Auburn · 0.3 mi · 58,597 SF · built 2000 · assessed $202.68/SF
1231 37th St NW, Auburn · 0.3 mi · 21,466 SF · built 1998 · assessed $168.69/SF

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Sale history and market context

MakeMe Estimate: $64,006,959 (estimated market value), with a likely range of $55,194,945 to $71,408,443 (half of recent verified sales in this segment landed inside that range). Based on 96 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Current ownership dates to 2024 (about 2 years) per recorded transfers.

2024-07-18: $83,100,000 from Tga Auburn Business Park LLC to Civf VII- Wa1m01 LLC+Civf VII-Wa1b01 LLC (part of a 2-parcel sale; price is the whole deal), rec. 20240725000997

2019-12-26: transfer from Private party to Tga Auburn Business Park LLC (part of a 2-parcel sale; price is the whole deal), rec. 20191227000581

2002-12-30: $20,418,000 from Benaroya Company LLC to Teachers Insurance and Annuity Association of Amer… (part of a 2-parcel sale; price is the whole deal), rec. 20021230002736

1999-03-15: $3,326,120 from Private party to Benaroya Company LLC the (part of a 2-parcel sale; price is the whole deal), rec. 199903152239

1994-06-23: $1,100,213 from Fiorito Bros INC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 199406240474

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 $12,704,600 (2011) to $56,072,300 (2026), up 341% over 15 years, per county tax rolls. The 2026 roll splits $56,072,300 into $7,902,800 land and $48,169,500 improvements.

Zoning: M1 (per King County)

Lot: 486,961 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Mega Warehouse 252,265 SF; Warehouse Office 6,655 SF (county building sections)

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

Permit history

2024-10-07: Other (Complete), permit PLM24-0212

2024-09-17: Other (Complete), permit MEC24-0544

2024-08-16: Other, declared value $300,000 (Complete), permit TEN24-0076

2020-05-07: Other (Complete), permit TEN20-0058

2015-09-08: Remodel, declared value $108,000 (Complete), permit ALT15-0153

2014-08-13: Remodel, declared value $90,000 (Complete), permit ALT14-0188

2014-08-12: Remodel, declared value $185,000 (Complete), permit ALT14-0184

2014-04-30: Remodel, declared value $59,860 (Complete), permit ALT14-0084

2012-11-26: Remodel, declared value $700,000 (Complete), permit ALT12-0089

2011-06-20: Remodel, declared value $326,000 (Complete), permit ALT11-0138

Source: King County permit records (newest first).