1301 4th Ave NW, Issaquah, WA 98027

Office · Issaquah · 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 AI estimate from public imagery; may be outdated.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 79 reachable office buildings in Issaquah. Larger than 95% of office buildings in Issaquah (median 11,200 SF), derived from assessor records.

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Building size: 108,587 SF, King County Assessor
Lot size: 90,064 SF, King County Assessor
Year built: 2011, King County Assessor
Stories: 4, King County Assessor
Predominant use: Medical Building, King County Assessor
Assessed value: $25,648,400, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $236.20/SF, derived from assessor records
Lot coverage: 121%, derived from assessor records
Vintage: 2010s vintage
Zoning: MU-CI, King County
County use code: Medical/Dental Office
Construction (observed): steel glass, 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.

22500 SE 64th Pl, Issaquah · 0.1 mi · 26,188 SF · built 1999 · assessed $189.27/SF
22510 SE 64th Pl, Issaquah · 0.1 mi · 8,990 SF · built 1989 · assessed $406.84/SF
22516 SE 64th Pl, Issaquah · 0.1 mi · 8,660 SF · built 1989 · assessed $308.93/SF
450 NW Gilman Blvd, Issaquah · 0.1 mi · 40,100 SF · built 1988 · assessed $337.57/SF
22525 SE 64th Pl, Issaquah · 0.1 mi · 26,188 SF · built 1992 · assessed $300.11/SF
6505 226th Pl SE, Issaquah · 0.1 mi · 23,949 SF · built 1995 · assessed $304.49/SF

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Sale history and market context

MakeMe Estimate: $30,036,116 (estimated market value), with a likely range of $27,145,204 to $39,135,637 (half of recent verified sales in this segment landed inside that range). Based on 55 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2010-11-16 for $600,000 (recorded arm's-length sale).

Current ownership dates to 2013 (about 13 years) per recorded transfers.

2013-12-04: transfer from South Kenyon Street LLC to 224th Avenue LLC (non-market transfer), rec. 20131204001066

2010-11-16: $600,000 from 224th Avenue LLC to South Kenyon Street LLC, rec. 20101117001513

2 administrative transfers (no consideration), 2009 to 2009

2005-12-21: $2,000,000 from Private party to Issaquah City of (part of a 3-parcel sale; price is the whole deal), rec. 20051230000467

1987-02-11: transfer from Private party to Private party (non-market transfer), rec. 198702200554

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 $2,149,000 (2011) to $25,648,400 (2026), up 1094% over 15 years, per county tax rolls. The 2026 roll splits $25,648,400 into $3,152,200 land and $22,496,200 improvements.

Zoning: MU-CI (per King County)

Lot: 90,064 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Private

Street surface: Paved

Floor and use mix: Medical Office 71,136 SF; Basement, Parking 37,451 SF (county building sections)

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

Permit history

2026-01-23: Remodel, declared value $750,000, permit BLD25-00358

2024-07-18: Remodel, declared value $450,000 (Screened), permit BLD24-00055

2022-03-23: Remodel, declared value $685,000 (Complete), permit BLD21-00258

2021-11-30: Remodel, declared value $4,000 (Screened), permit BLD21-00265

2021-03-08: Remodel, declared value $750,000 (Complete), permit BLD20-00193

2019-05-21: Sign (Screened), permit SGN19-00103

2017-10-19: Remodel, declared value $150,000 (Complete), permit BLD17-00265

2016-08-12: Remodel, declared value $170,000 (Complete), permit BLD16-00204

2014-09-11: Remodel, declared value $225,000 (Complete), permit BLD14-00239

2013-08-06: Remodel, declared value $578,124 (Complete), permit BLD13-00089

Source: King County permit records (newest first).