605 Boylston Ave E, Seattle, WA 98102

Multifamily · Seattle · Seattle-Bellevue metro, WA

Imagery suggests: mid-rise apartment, 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 AI estimate from public imagery; may be outdated.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 86% of multifamily buildings in Seattle (median 9,444 SF), derived from assessor records.

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Building size: 41,396 SF, King County Assessor
Lot size: 18,588 SF, King County Assessor
Year built: 1965, King County Assessor
Stories: 4, King County Assessor
Predominant use: Apartment Building, King County Assessor
Units: 51, King County Assessor
Assessed value: $13,300,000, per the King County Assessor (not a market appraisal)
Assessed value per building SF: $321.29/SF, derived from assessor records
Lot coverage: 223%, derived from assessor records
Vintage: 1960s vintage
Zoning: LR3 (M), King County
County use code: Apartment
Construction (observed): masonry, AI estimate from public imagery
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.

627 E Roy St, Seattle · 0 mi · 7,769 SF · built 1959 · assessed $372.51/SF
601 E Roy St, Seattle · 0 mi · 10,130 SF · built 1958 · assessed $300.69/SF
600 E Mercer St, Seattle · 0 mi · 9,120 SF · built 1957 · assessed $301.54/SF
707 E Roy St, Seattle · 0 mi · 18,000 SF · built 1964 · assessed $279.67/SF
532 Belmont Ave E, Seattle · 0 mi · 15,810 SF · built 1925 · assessed $263/SF
514 E Roy St, Seattle · 0 mi · 8,646 SF · built 1947 · assessed $289.04/SF

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Sale history and market context

MakeMe Estimate: $12,317,737 (estimated market value), with a likely range of $10,934,300 to $14,051,113 (half of recent verified sales in this segment landed inside that range). Based on 667 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works. About $242K per unit at the midpoint (51 units).

Last sold: 1994-09-06 for $3,261,925 (recorded arm's-length sale).

Current ownership dates to 1999 (about 27 years) per recorded transfers.

1999-12-30: transfer from Private party to M & S Ehsan Investments LLC (non-market transfer), rec. 20000105002005

1994-09-06: $3,261,925 from J-Manor Alliance Investments to Private party, rec. 199409131199

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 $4,836,000 (2011) to $13,300,000 (2026), up 175% over 15 years, per county tax rolls. The 2026 roll splits $13,300,000 into $5,576,400 land and $7,723,600 improvements.

Zoning: LR3 (M) (per King County)

Lot: 18,588 sq ft

Rated views: Olympic Mountains

Water: Water District (per King County)

Sewer: Public (per King County)

Access: Public

Street surface: Paved

Floor and use mix: Apartment 41,396 SF (county building sections)

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