512 Broadway, Seattle, WA 98122
Multifamily · Seattle · Seattle-Bellevue metro, WA
One of 5,391 reachable multifamily buildings in Seattle. Larger than 96% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.
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- Building size
- 139,941 SF, King County Assessor
- Lot size
- 7,080 SF, King County Assessor
- Year built
- 2016, King County Assessor
- Stories
- 6, King County Assessor
- Predominant use
- Apartment, King County Assessor
- Units
- 170, King County Assessor
- Assessed value
- $33,919,100, per the King County Assessor (not a market appraisal)
- Assessed value per building SF
- $242.38/SF, derived from assessor records
- Lot coverage
- 1977%, derived from assessor records
- Vintage
- 2010s vintage
- Zoning
- MIO-90-NC3-95 (M), King County
- County use code
- Apartment(Mixed Use)
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 500 Broadway, Seattle · 0 mi · 41,889 SF · built 2021 · assessed $357.37/SF
- 1203 James St, Seattle · 0.1 mi · 23,984 SF · built 1925 · assessed $209.81/SF
- 415 10th Ave, Seattle · 0.1 mi · 52,405 SF · built 2007 · assessed $219.47/SF
- 411 10th Ave, Seattle · 0.1 mi · 20,973 SF · built 1996 · assessed $216.99/SF
- 400 Broadway, Seattle · 0.1 mi · 21,005 SF · built 1995 · assessed $126.97/SF
- 400 10th Ave, Seattle · 0.1 mi · 37,485 SF · built 1985 · assessed $288.14/SF
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Sale history and market context
MakeMe Estimate: $33,084,827 (estimated market value), with a likely range of $30,219,827 to $34,143,813 (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 $195K per unit at the midpoint (170 units).
Current ownership dates to 2018 (about 8 years) per recorded transfers.
- 2018-01-19: $68,330,000 from Private party to GS Zig LLC (part of a 4-parcel sale; price is the whole deal), rec. 20180119001594
- 2015-10-08: transfer from 550 Broadway Development LLC to Seattle City of (part of a 3-parcel sale; price is the whole deal), rec. 20151019000594
- 2014-12-12: $7,500,000 from 550 Broadway LLC+Stratford 550 Broadway LLC to 550 Broadway Development LLC (part of a 4-parcel sale; price is the whole deal), rec. 20141212000545
- 2014-12-11: transfer from 550 Broadway LLC to Stratford 550 Broadway LLC (part of a 4-parcel sale; price is the whole deal), rec. 20141212000544
- 2011-02-11: $3,339,000 from Private party to 550 Broadway LLC (part of a 4-parcel sale; price is the whole deal), rec. 20110218001835
Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.
Land, site, and value history
Assessed value moved from $51,742,300 (2018) to $33,919,100 (2026), down 34% over 8 years, per county tax rolls. The 2026 roll splits $33,919,100 into $0 land and $33,919,100 improvements.
- Zoning: MIO-90-NC3-95 (M) (per King County)
- Lot: 7,080 sq ft
- Water: Water District (per King County)
- Sewer: Public (per King County)
- Access: Public
- Floor and use mix: Apartment 107,141 SF; Underground Parking Structure 28,085 SF; Line Retail 2,896 SF; Restaurant, Table Service 1,818 SF (county building sections)
- County districts report (schools, fire, sewer, council; on kingcounty.gov)