20307 North Creek Pkwy, Bothell, WA 98011

Office · Bothell · 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 AI estimate from public imagery; may be outdated.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 55 reachable office buildings in Bothell. Larger than 96% of office buildings in Bothell (median 17,506 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: 187,806 SF, King County Assessor
Lot size: 354,298 SF, King County Assessor
Year built: 2000, King County Assessor
Stories: 2, King County Assessor
Predominant use: North Creek Bldgs - "J" , "K", King County Assessor
Assessed value: $41,538,800, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $221.18/SF, derived from assessor records
Lot coverage: 53%, derived from assessor records
Vintage: 2000s vintage
Zoning: R-AC, OP, CB, LI, King County
County use code: Office Building
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): none visible, 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.

20205 North Creek Pkwy, Bothell · 0.1 mi · 93,030 SF · built 2000 · assessed $159.36/SF
20309 North Creek Pkwy, Bothell · 0.1 mi · 93,030 SF · built 2000 · assessed $159.36/SF
20000 North Creek Pkwy, Bothell · 0.1 mi · 60,756 SF · built 1999 · assessed $166.44/SF
19900 North Creek Pkwy, Bothell · 0.1 mi · 47,556 SF · built 1999 · assessed $123.41/SF
19910 North Creek Pkwy, Bothell · 0.2 mi · 70,448 SF · built 1999 · assessed $163.68/SF
11714 North Creek Pkwy N, Bothell · 0.2 mi · 40,475 SF · built 2001 · assessed $171.24/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: $55,894,068 (estimated market value), with a likely range of $54,429,856 to $73,851,467 (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.

Current ownership dates to 2004 (about 22 years) per recorded transfers.

2025-07-23: $4,700 from New Cingular Wireless PCS LLC to Ziply Fiber Northwest LLC (part of a 3-parcel sale; price is the whole deal), rec. 20250820000323

2025-07-23: $2,500 from New Cingular Wireless LLC to Ziply Fiber Northwest LLC (part of a 3-parcel sale; price is the whole deal), rec. 20250815001120

2004-12-21: $134,336,846 from Afg Services LP to New Cingular Wireless Headquarters LLC (part of a 3-parcel sale; price is the whole deal), rec. 20041221001797

2000-12-07: $34,572,595 from S/I North Creek V LLC to Afg Services LP (non-market transfer), rec. 20001207001483

2000-12-07: $32,363,698 from Private party to Afg Services LP (non-market transfer), rec. 20001207001482

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 $16,416,600 (2011) to $41,538,800 (2026), up 153% over 15 years, per county tax rolls. The 2026 roll splits $41,538,800 into $11,337,500 land and $30,201,300 improvements.

Zoning: R-AC, OP, CB, LI (per King County)

Lot: 354,298 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Industrial Engineering Building 109,632 SF; Open Office 39,087 SF; Warehouse, Distribution 39,087 SF (county building sections)

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

Permit history

2025-04-21: Other, declared value $150,000 (Complete), permit MNR2025-39507

2023-06-29: Remodel, declared value $3,000,000 (Complete), permit BNR2023-34052

2023-06-29: Other, declared value $1,500,000 (Complete), permit MNR2023-34055

2020-12-07: Remodel, declared value $100,000 (Complete), permit BNR2020-26830

2017-06-12: Other, declared value $500,000 (Complete), permit MNR2017-15752

2017-06-12: Remodel, declared value $500,000 (Complete), permit BNR2017-15715

2013-04-08: Remodel, declared value $400,000 (Complete), permit BNR2012-03542

2007-07-31: Accessory, New, declared value $600,010 (Complete), permit BLD007-00165

2005-10-20: Building, New, declared value $786,240 (Complete), permit BLD2005-00357

2005-08-05: Remodel, declared value $3,200,000 (Complete), permit BLD2005-00244

Source: King County permit records (newest first).