625 Williams Ave S, Renton, WA 98057

Multifamily · Renton · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise mixed-use, 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 AI estimate from public imagery; may be outdated.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 302 reachable multifamily buildings in Renton. Larger than 87% of multifamily buildings in Renton (median 6,852 SF), derived from assessor records.

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Building size: 145,842 SF, King County Assessor
Lot size: 58,236 SF, King County Assessor
Year built: 2022, King County Assessor
Stories: 6, King County Assessor
Predominant use: Watershed Apartments, King County Assessor
Units: 145, King County Assessor
Assessed value: $46,864,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $321.33/SF, derived from assessor records
Lot coverage: 250%, derived from assessor records
Vintage: 2020s vintage
Zoning: R-14, King County
County use code: Apartment
Parking (observed): street only, 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.

605 Williams Ave S, Renton · 0 mi · 2,184 SF · built 1978 · assessed $315.93/SF
540 Burnett Ave S, Renton · 0 mi · 3,236 SF · built 1979 · assessed $261.74/SF
602 Burnett Ave S, Renton · 0.1 mi · 2,206 SF · built 1978 · assessed $334.09/SF
535 Burnett Ave S, Renton · 0.1 mi · 2,886 SF · built 1979 · assessed $253.64/SF
532 Burnett Ave S, Renton · 0.1 mi · 3,236 SF · built 1979 · assessed $272.87/SF
633 Burnett Ave S, Renton · 0.1 mi · 6,130 SF · built 1998 · assessed $263.62/SF

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Sale history and market context

MakeMe Estimate: $47,676,593 (estimated market value), with a likely range of $43,548,010 to $49,202,635 (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 $329K per unit at the midpoint (145 units).

Last sold: 2018-05-01 for $598,000 (recorded arm's-length sale).

Current ownership dates to 2020 (about 6 years) per recorded transfers.

2024-10-07: transfer from GMD Renton LLLP to Renton City of (3.78%) (non-market transfer), rec. 20241107000598

2020-09-18: $3,200,000 from Cordova Renton LLC to GMD Renton LLLP (part of a 4-parcel sale; price is the whole deal), rec. 20200924000177

2018-05-01: $598,000 from Private party to Cordova Renton LLC, rec. 20180511001336

2 administrative transfers (no consideration), 1992 to 2003

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 $533,500 (2011) to $46,864,000 (2026), up 8684% over 15 years, per county tax rolls. The 2026 roll splits $46,864,000 into $2,052,800 land and $44,811,200 improvements.

Zoning: R-14 (per King County)

Lot: 58,236 sq ft

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 126,486 SF; Parking Levels (Intermediate/Under Building) 19,356 SF (county building sections)

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

Permit history

2025-07-28: Electrical, declared value $1,000, permit E25003788

2024-04-10: Electrical, declared value $1,000 (Complete), permit E24001869

2024-02-22: Electrical, declared value $120,000 (Complete), permit E24000846

2024-01-22: Electrical, declared value $1,040 (Complete), permit E24000315

2024-01-03: Electrical, declared value $5,000 (Complete), permit E24000057

2023-06-14: Electrical, declared value $900 (Complete), permit E23003153

2023-06-01: Electrical, declared value $98,000 (Complete), permit E23002872

2023-05-23: Remodel, declared value $12,084 (Complete), permit B23001351

2023-03-09: Electrical, declared value $34,319 (Complete), permit E23001279

2023-02-15: Remodel, declared value $22,000 (Complete), permit B22001235

Source: King County permit records (newest first).