2515 4th Ave, Seattle, WA 98121

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: utilitarian structure. AI estimate from public imagery. In recent public imagery (2026-06), the building appears serviceable with visible wear. AI estimate from public imagery; may be outdated.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: 321,050 SF, King County Assessor
Lot size: 25,920 SF, King County Assessor
Year built: 1990, King County Assessor
Stories: 26, King County Assessor
Predominant use: Centennial Tower Apts, King County Assessor
Units: 221, King County Assessor
Assessed value: $85,985,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $267.82/SF, derived from assessor records
Lot coverage: 1239%, derived from assessor records
Vintage: 1990s vintage
Zoning: DMR/C 280/125, King County
County use code: Apartment(Mixed Use)
Construction (observed): masonry, AI estimate from public imagery
Parking (observed): none visible, AI estimate from public imagery

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

2550 3rd Ave, Seattle · 0 mi · 192,077 SF · built 2000 · assessed $302.71/SF
400 Wall St, Seattle · 0 mi · 160,141 SF · built 2000 · assessed $309.47/SF
420 Wall St, Seattle · 0.1 mi · 44,736 SF · built 1925 · assessed $730.13/SF
2602 4th Ave, Seattle · 0.1 mi · 22,400 SF · built 1923 · assessed $313.66/SF
2400 4th Ave, Seattle · 0.1 mi · 328,947 SF · built 1998 · assessed $303.48/SF
311 Cedar St, Seattle · 0.1 mi · 176,815 SF · built 2011 · assessed $360.47/SF

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Sale history and market context

MakeMe Estimate: $79,401,828 (estimated market value), with a likely range of $72,525,981 to $81,943,339 (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 $359K per unit at the midpoint (221 units).

Last sold: 2025-12-30 for $70,785,000 (recorded arm's-length sale).

Current ownership dates to 2025 per recorded transfers.

2025-12-30: $70,785,000 from Eqr Centennial Tower LLC to Centennial Apartments Property Owner LLC, rec. 20260106000936

2005-01-27: $48,308,700 from Centennial Tower Associates to Eqr Centennial Tower LLC (non-market transfer), rec. 20050127001569

1989-08-30: transfer from Private party to Centennial Tower Associates (non-market transfer), rec. 19990922001165

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 $42,517,000 (2011) to $85,985,000 (2026), up 102% over 15 years, per county tax rolls. The 2026 roll splits $85,985,000 into $25,660,800 land and $60,324,200 improvements.

Zoning: DMR/C 280/125 (per King County)

Lot: 25,920 sq ft

Rated views: Olympic Mountains, Cascades, Territorial, Seattle skyline, Puget Sound, Lake / river / creek

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 214,500 SF; Basement, Parking 94,550 SF; Retail Store 12,000 SF (county building sections)

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

Permit history

2026-01-15: Electrical, permit 7125049-EL

2026-01-08: Electrical, permit 7124176-EL

2025-12-01: Electrical, declared value $52,500, permit 7118895-EL

2025-10-23: Remodel, declared value $500,000, permit 7089666-CN

2024-11-22: Electrical, declared value $500 (Screened), permit 7057852-EL

2024-09-19: Electrical, declared value $11,636 (Screened), permit 7046922-EL

2024-08-08: Electrical, declared value $16,500 (Screened), permit 7039953-EL

2024-05-14: Electrical, declared value $20,000 (Screened), permit 7024951-EL

2023-09-05: Electrical, declared value $45,000 (Screened), permit 6984290-EL

2017-07-19: Remodel, declared value $300,000 (Screened), permit 6588604

Source: King County permit records (newest first).