2820 Northup Way, Bellevue, WA 98004

Office · Bellevue · Seattle-Bellevue metro, WA

Imagery suggests: suburban 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 AI estimate from public imagery; may be outdated.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 308 reachable office buildings in Bellevue. Larger than 70% of office buildings in Bellevue (median 23,608 SF), derived from assessor records.

Own this building?

Claim privately

Claiming is for you. Your mailing address is never shown; no offer reaches you unless you opt in.

Claimed owners can confirm facts, watch the estimate, and decide whether to reply.

Claim or manage this building

Building size: 52,848 SF, King County Assessor
Lot size: 218,358 SF, King County Assessor
Year built: 1980, King County Assessor
Stories: 2, King County Assessor
Buildings on parcel: 3, King County Assessor
Predominant use: Office Building #1, King County Assessor
Assessed value: $15,830,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $299.55/SF, derived from assessor records
Lot coverage: 24%, derived from assessor records
Vintage: 1980s vintage
Zoning: OLB, King County
County use code: Office Building
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.

2821 Northup Way, Bellevue · 0.1 mi · 29,576 SF · built 1978 · assessed $287.22/SF
2950 Northup Way, Bellevue · 0.1 mi · 25,342 SF · built 1980 · assessed $206.72/SF
3000 Northup Way, Bellevue · 0.1 mi · 29,064 SF · built 1988 · assessed $175.46/SF
3006 Northup Way, Bellevue · 0.1 mi · 39,904 SF · built 1986 · assessed $271.91/SF
2625 Northup Way, Bellevue · 0.1 mi · 6,250 SF · built 1976 · assessed $340.59/SF
2959 Northup Way, Bellevue · 0.1 mi · 7,311 SF · built 1972 · assessed $420.26/SF

Want to talk to the owner? makeme1031 delivers a private, principal-to-principal letter to the owner of record. We never publish the owner's identity or address.

Sale history and market context

MakeMe Estimate: $20,570,935 (estimated market value), with a likely range of $20,032,055 to $27,179,874 (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: 2017-09-27 for $13,250,000 (recorded arm's-length sale).

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

2017-09-27: $13,250,000 from Sfi 2840 Northup Way LLC to Tien Yun Investments LLC, rec. 20170927001307

2015-04-27: $600 from Sfi 2840 Northup Way LLC to Puget Sound Energy INC, rec. 20150514000204

2015-04-01: $9,100,000 from Sound Northwest Properties LLC to Sfi 2840 Northup Way LLC, rec. 20150401002151

2004-08-13: $5,531,332 from Northup Building 98 LLC to Sound Northwest Properties LLC, rec. 20040813002242

1998-08-17: $5,215,000 from Private party to Northup West 98 LLC, rec. 199808261484

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 $8,852,000 (2011) to $15,830,800 (2026), up 79% over 15 years, per county tax rolls. The 2026 roll splits $15,830,800 into $13,756,500 land and $2,074,300 improvements.

Zoning: OLB (per King County)

Lot: 218,358 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Office Building 52,848 SF (county building sections)

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

Permit history

2026-04-30: Remodel, declared value $85,000, permit 26 106855 BZ

2024-10-22: Remodel, declared value $30,000 (Screened), permit 24 122878 BZ

2020-10-20: Remodel, declared value $40,000 (Screened), permit 20 119248 BZ

2009-04-01: Remodel, declared value $4,500 (Complete), permit 09108008

2008-07-31: Remodel, declared value $33,840 (Complete), permit 08115795

2008-04-08: Remodel, declared value $3,500 (Complete), permit 08113846

2007-06-18: Remodel, declared value $1,500 (Complete), permit 07123002

Source: King County permit records (newest first).