820 SW 148th St, Burien, WA 98166

Office · Burien · Seattle-Bellevue metro, WA

One of 127 reachable office buildings in Burien. Larger than 38% of office buildings in Burien (median 3,864 SF), derived from assessor records.

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Building size: 3,420 SF, King County Assessor
Lot size: 15,884 SF, King County Assessor
Year built: 1970, King County Assessor
Stories: 1, King County Assessor
Predominant use: Reframe Health Clinic (chiropractor), King County Assessor
Assessed value: $798,500, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $233.48/SF, derived from assessor records
Lot coverage: 22%, derived from assessor records
Vintage: 1970s vintage
Zoning: MU-2 E, King County
County use code: Office Building
Construction (observed): wood frame, 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.

14822 8th Ave SW, Burien · 0.1 mi · 1,080 SF · built 1973 · assessed $349.17/SF
14647 Ambaum Blvd SW, Burien · 0.1 mi · 5,418 SF · built 2006 · assessed $343/SF
620 SW 150th St, Burien · 0.2 mi · 4,251 SF · built 1958 · assessed $247/SF
14434 Ambaum Blvd SW, Burien · 0.2 mi · 10,533 SF · built 1965 · assessed $285/SF
922 SW 151st St, Burien · 0.2 mi · 3,494 SF · built 1959 · assessed $225.96/SF
15020 10th Ave SW, Burien · 0.2 mi · 3,750 SF · built 1967 · assessed $213.76/SF

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Sale history and market context

MakeMe Estimate: $989,793 (estimated market value), with a likely range of $894,527 to $1,289,653 (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: 2017-04-20 for $630,000 (recorded arm's-length sale).

Current ownership dates to 2017 (about 9 years) per recorded transfers.

2017-04-20: $630,000 from Private party to Wiggins Building LLC, rec. 20170501001056

2015-03-27: transfer from Private party to Private party (non-market transfer), rec. 20150327000678

2002-06-21: $565,000 from Watkins Commercial Buildings LLC to Private party, rec. 20020624003008

2000-01-24: $1,100,000 from Private party to Watkins Commercial BLDG LLC (part of a 2-parcel sale; price is the whole deal), rec. 20000201000957

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 $581,400 (2011) to $798,500 (2026), up 37% over 15 years, per county tax rolls. The 2026 roll splits $798,500 into $341,500 land and $457,000 improvements.

Zoning: MU-2 E (per King County)

Lot: 15,884 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 3,420 SF (county building sections)

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

Permit history

2020-06-09: Other, declared value $19,890 (Complete), permit MEC-20-1030

2020-05-27: Plumbing, declared value $21,850 (Complete), permit PLM-20-0863

2020-05-26: Electrical, declared value $11,600 (Complete), permit ELE-20-0968

2020-05-13: Electrical, declared value $20,000 (Complete), permit ELE-20-0898

2020-04-24: Remodel, declared value $150,000 (Complete), permit BLD-20-0376

2019-05-28: Demolition, declared value $2,500 (Complete), permit DMO-19-1272

2018-10-30: Accessory, New, declared value $948,035 (Defunct), permit BLD-18-1633

2018-10-30: Plumbing, declared value $57,000 (Defunct), permit PLM-18-2625

2018-10-30: Electrical, declared value $46,500 (Defunct), permit ELE-18-2627

2018-10-30: Other, declared value $25,000 (Defunct), permit MEC-18-2626

Source: King County permit records (newest first).