4720 42nd Ave SW, Seattle, WA 98116

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: retail with residential above, 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 AI estimate from public imagery; may be outdated.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 5,391 reachable multifamily buildings in Seattle. Larger than 99% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 308,031 SF, King County Assessor
Lot size: 140,220 SF, King County Assessor
Year built: 1987, King County Assessor
Stories: 6, King County Assessor
Buildings on parcel: 2, King County Assessor
Predominant use: Office/Retail Pp#09742800 & 09742818, King County Assessor
Units: 78, King County Assessor
Assessed value: $68,628,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $222.80/SF, derived from assessor records
Lot coverage: 220%, derived from assessor records
Vintage: 1980s vintage
Zoning: NC3P-75 (M), King County
County use code: Apartment(Mixed Use)
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.

4744 41st Ave SW, Seattle · 0 mi · 163,699 SF · built 1991 · assessed $192.71/SF
4727 42nd Ave SW, Seattle · 0.1 mi · 156,605 SF · built 2008 · assessed $224.66/SF
4807 41st Ave SW, Seattle · 0.1 mi · 7,560 SF · built 2023 · assessed $645.90/SF
4715 42nd Ave SW, Seattle · 0.1 mi · 179,824 SF · built 2014 · assessed $179.50/SF
4730 California Ave SW, Seattle · 0.1 mi · 113,084 SF · built 2014 · assessed $200.75/SF
4745 40th Ave SW, Seattle · 0.1 mi · 168,439 SF · built 2015 · assessed $223.39/SF

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Sale history and market context

MakeMe Estimate: $74,834,881 (estimated market value), with a likely range of $68,354,511 to $77,230,212 (half of recent verified sales in this segment landed inside that range). Based on 98 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works. About $959K per unit at the midpoint (78 units).

Last sold: 2017-07-27 for $17,922,000 (recorded arm's-length sale).

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

2017-07-27: $17,922,000 from Private party to JSP Arterra LLC Et Al, rec. 20170727000716

2005-07-21: $27,000,000 from NNN Jefferson Square LLC to Pan Pacific Retail Properties INC, rec. 20050722000307

2005-05-27: $10,611,000 from Triad Jefferson LLC to Jefferson Square Apartments NW LLC, rec. 20050527001312

2003-07-28: $20,100,000 from Jeffsquare Investments LLC to NNN Jefferson Square LLC Et Al, rec. 20030728002449

1999-07-14: $50,000 from Triad Jefferson LLC to Safeway INC (non-market transfer), rec. 19990714001209

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 $48,774,000 (2011) to $68,628,000 (2026), up 41% over 15 years, per county tax rolls. The 2026 roll splits $68,628,000 into $36,457,200 land and $32,170,800 improvements.

Zoning: NC3P-75 (M) (per King County)

Lot: 140,220 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Basement, Parking 97,830 SF; Office Building 62,707 SF; Supermarket 39,556 SF; Apartment 37,991 SF; Line Retail 32,330 SF; Multiple Residence (Low Rise) 24,290 SF (county building sections)

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

Permit history

2025-12-30: Electrical, declared value $500 (Screened), permit 7123014-EL

2025-12-05: Electrical, declared value $5,000 (Screened), permit 7119886-EL

2025-09-11: Electrical, declared value $3,000 (Screened), permit 7106195-EL

2025-08-11: Electrical, declared value $500 (Screened), permit 7100895-EL

2025-05-29: Electrical, declared value $1,500 (Screened), permit 7088398-EL

2025-03-25: Other, declared value $11,480 (Screened), permit 7077062-RF

2025-02-07: Remodel, declared value $30,000 (Screened), permit 7052380-CN

2024-11-18: Electrical, declared value $2,300 (Screened), permit 7056968-EL

2024-10-04: Electrical, declared value $1,500 (Screened), permit 7049594-EL

2024-10-03: Electrical, declared value $1,665 (Screened), permit 7049353-EL

Source: King County permit records (newest first).