6510 Southcenter Blvd, Tukwila, WA 98188
Office · Tukwila · Seattle-Bellevue metro, WA
One of 97 reachable office buildings in Tukwila. Larger than 48% of office buildings in Tukwila (median 12,273 SF), derived from assessor records.
- Usable building area
- 12,267 SF, King County Assessor
- Lot size
- 22,244 SF, King County Assessor
- Year built
- 1978, King County Assessor
- Stories
- 2, King County Assessor
- Predominant use
- Office Building, King County Assessor
- Assessed value
- $2,318,500, per the King County Assessor (not a market appraisal)
- Assessed value per usable SF
- $189/SF, derived from assessor records
- Usable area / lot
- 0.55, derived from assessor records
- Vintage
- 1970s vintage
- Zoning
- O, King County
- County use code
- Office Building
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 15455 65th Ave S, Tukwila · 0.1 mi · 26,014 SF · built 1974 · assessed $155.38/SF
- 6400 Southcenter Blvd, Tukwila · 0.1 mi · 33,795 SF · built 1980 · assessed $240/SF
- 6300 Southcenter Blvd, Tukwila · 0.1 mi · 33,230 SF · built 1980
- 6200 Southcenter Blvd, Tukwila · 0.2 mi · 26,054 SF · built 1979
- 116 Andover Park E, Tukwila · 0.2 mi · 23,550 SF · built 1972 · assessed $155.49/SF
- 6100 Southcenter Blvd, Tukwila · 0.2 mi · 18,287 SF · built 1980 · assessed $207.80/SF
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Sale history and market context
MakeMe Estimate: $2.88M (estimated market value), with a likely range of $2.54M to $3.33M (half of recent verified sales in this segment landed inside that range). Based on 8 verified arm's-length comparable sales (through 2026-06-01). Not an appraisal. How this estimate works.
moderate confidence: 5 comparable sales within 3 miles; nearest 0.2 mi. This property type carries wider measured error; treat the estimate as a starting point.
Comparable sales used as evidence
- 6100 Southcenter Blvd, Tukwila: $3,500,000 (2025-01), 18,288 SF, $191.38/SF, built 1980, 0.2 mi away
- 6000 Southcenter Blvd, Tukwila: $1,778,657 (2024-12), 7,510 SF, $236.84/SF, built 1980, 0.3 mi away
- 263 Rainier Ave S, Renton: $2,750,000 (2025-08), 11,533 SF, $238.45/SF, built 1980, 2 mi away (different city)
- 100 S 2nd St, Renton: $1,500,000 (2024-11), 5,443 SF, $275.58/SF, built 1964, 2.1 mi away (different city)
- 211 Morris Ave S, Renton: $1,325,000 (2024-08), 4,666 SF, $283.97/SF, built 1965, 2.3 mi away (different city)
Recorded arm's-length sales of similar buildings nearby; nearer and more recent sales rank first. Buyer and seller names are withheld. Get this data via API.
Ownership tenure is not asserted for this parcel: the most recent recorded transfer is a non-market conveyance.
- 1987-06-17: transfer from Schneider Homes INC to Private party (non-market transfer), rec. 198706230687
Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.
Land, site, and value history
Assessed value moved from $1,499,500 (2011) to $2,318,500 (2026), up 55% over 15 years, per county tax rolls. The 2026 roll splits $2,318,500 into $589,400 land and $1,729,100 improvements.
- Zoning: O (per King County)
- Lot: 22,244 sq ft
- Water: Water District (per King County)
- Sewer: Public (per King County)
- Access: Public
- Street surface: Paved
- Floor and use mix: Office Building 12,267 SF (county building sections)
- County districts report (schools, fire, sewer, council; on kingcounty.gov)