321 4th St SE, Auburn, WA 98002

Office · Auburn · Seattle-Bellevue metro, WA

One of 142 reachable office buildings in Auburn. Larger than 30% of office buildings in Auburn (median 4,625 SF), derived from assessor records.

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Building size
2,596 SF, King County Assessor
Lot size
10,500 SF, King County Assessor
Year built
1998, King County Assessor
Stories
2, King County Assessor
Predominant use
Dental Office, King County Assessor
Assessed value
$702,400, per the King County Assessor (not a market appraisal)
Assessed value per building SF
$270.57/SF, derived from assessor records
Lot coverage
25%, derived from assessor records
Vintage
1990s vintage
Zoning
R7, King County
County use code
Medical/Dental Office
Construction (observed)
wood frame, AI estimate from public imagery
Parking (observed)
surface lot, AI estimate from public imagery

Nearby comparable buildings

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

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Sale history and market context

MakeMe Estimate: $896,912 (estimated market value), with a likely range of $810,586 to $1,168,634 (half of recent verified sales in this segment landed inside that range). Based on 55 verified arm's-length comparable sales (through 2026-05-29). Not an appraisal. How this estimate works.

Last sold: 2013-02-25 for $560,000 (recorded arm's-length sale).

Current ownership dates to 2013 (about 13 years) per recorded transfers.

Source: King County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.

Value over time

$300K$599K$899K$1.2M201120142017202020232026$560KCounty appraised valueEstimated value (modeled range)Recorded sale

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 $350,500 (2011) to $702,400 (2026), up 100% over 15 years, per county tax rolls. The 2026 roll splits $702,400 into $105,000 land and $597,400 improvements.

Taxes

Permit history

Source: King County permit records (newest first).