11535 15th Ave NE, Seattle, WA 98125

Office · Seattle · Seattle-Bellevue metro, WA

One of 957 reachable office buildings in Seattle. Larger than 1% of office buildings in Seattle (median 20,410 SF), derived from assessor records.

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Building size: 1,204 SF, King County Assessor
Lot size: 7,155 SF, King County Assessor
Year built: 1996, King County Assessor
Stories: 1, King County Assessor
Predominant use: Single Tenant Office, King County Assessor
Assessed value: $1,045,900, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $868.69/SF, derived from assessor records
Lot coverage: 17%, derived from assessor records
Vintage: 1990s vintage
Zoning: NC2-55 (M), King County
County use code: Office Building
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.

1415 NE 123rd St, Seattle · 0.3 mi · 14,162 SF · built 1974 · assessed $302.46/SF
1015 NE 113th St, Seattle · 0.3 mi · 7,741 SF · built 1978 · assessed $255.70/SF
11050 5th Ave NE, Seattle · 0.5 mi · 8,834 SF · built 1983 · assessed $276.23/SF
11300 25th Ave NE, Seattle · 0.6 mi · 5,628 SF · built 1961 · assessed $263.66/SF
2611 NE 113th St, Seattle · 0.6 mi · 7,388 SF · built 1992 · assessed $212.21/SF
11000 Lake City Way NE, Seattle · 0.6 mi · 23,022 SF · built 1980 · assessed $255.33/SF

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Sale history and market context

MakeMe Estimate: $1,016,578 (estimated market value), with a likely range of $989,947 to $1,343,179 (half of recent verified sales in this segment landed inside that range). Based on 185 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2019-01-29 for $1,100,000 (recorded arm's-length sale).

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

2024-05-02: $3,417,500 from Oliver Investment Group LLC to Private party (part of a 2-parcel sale; price is the whole deal), rec. 20240503000537

2019-01-29: $1,100,000 from Private party to Oliver Investment Group LLC, rec. 20190206001076

1996-09-26: $140,000 from Private party to Private party, rec. 199610010043

1994-12-28: transfer from Private party to Private party (non-market transfer), rec. 199412291272

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 $322,900 (2011) to $1,045,900 (2026), up 224% over 15 years, per county tax rolls. The 2026 roll splits $1,045,900 into $930,100 land and $115,800 improvements.

Zoning: NC2-55 (M) (per King County)

Lot: 7,155 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Open Office 756 SF; Basement, Storage 448 SF (county building sections)

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