18 1st St SE, Auburn, WA 98002
Commercial · Auburn · Seattle-Bellevue metro, WA
One of 197 reachable commercial buildings in Auburn. Larger than 90% of commercial buildings in Auburn (median 21,916 SF), derived from assessor records.
- Usable building area
- 169,313 SF, King County Assessor
- Lot size
- 59,728 SF, King County Assessor
- Year built
- 2016, King County Assessor
- Stories
- 4, King County Assessor
- Predominant use
- Retirement Facility, King County Assessor
- Units
- 129, King County Assessor
- Assessed value
- $34,727,800, per the King County Assessor (not a market appraisal)
- Assessed value per usable SF
- $205.11/SF, derived from assessor records
- Usable area / lot
- 2.83, derived from assessor records
- Vintage
- 2010s vintage
- Zoning
- DUC, King County
- County use code
- Retirement Facility
Nearby comparable buildings
Same building type, by distance. Assessor facts only; not an opinion of value.
- 25 W Main St, Auburn · 0.1 mi · 57,316 SF · built 1979
- 202 N Division St, Auburn · 0.2 mi · 201,792 SF · built 1990 · assessed $346.32/SF
- 507 C St SW, Auburn · 0.3 mi · 67,677 SF · built 2018 · assessed $305.41/SF
- 20 E St NE, Auburn · 0.4 mi · 47,784 SF · built 1973
- 401 8th St SW, Auburn · 0.4 mi · 73,906 SF · built 1999 · assessed $202.90/SF
- 800 4th St NE, Auburn · 0.5 mi · 167,349 SF · built 1953
Want to talk to the owner? makeme1031 delivers a private letter directly to the owner of record. We never publish the owner's identity or address.
Own this building?
Claim privately
Claiming is for you. Your mailing address is never shown; no offer reaches you unless you opt in.
Claimed owners can confirm facts, watch the estimate, and decide whether to reply.
Received a letter about this building? It came from a real buyer through makeme1031; claiming is how you reply privately, on your terms.
Claimed owners also get Portfolio Pulse: a monthly email tracking this building's value.
Claim or manage this building
Sale history and market context
MakeMe Estimate: $36.9M (estimated market value), with a likely range of $30.6M to $44.4M (half of recent verified sales in this segment landed inside that range). Based on 8 verified arm's-length comparable sales (through 2026-06-01). Not an appraisal. How this estimate works.
lower confidence: 1 comparable sale within 3 miles; nearest 1.9 mi. This property type carries wider measured error; treat the estimate as a starting point.
Comparable sales used as evidence
- 2901 I St NE, Auburn: $18,823,106 (2024-12), 81,227 SF, $231.73/SF, built 1992, 1.9 mi away
- 112 Kennebeck Ave N, Kent: $4,750,000 (2024-08), 45,936 SF, $103.40/SF, built 1997, 5.2 mi away (different city)
- 17420 106th Pl SE, Renton: $13,062,500 (2024-12), 50,818 SF, $257.04/SF, built 2017, 9.8 mi away (different city)
- 23599 SE Issaquah Fall City Rd, Issaquah: $24,979,000 (2025-07), 96,471 SF, $258.93/SF, built 2019, 19.2 mi away (different city)
- 3725 Providence Point Dr SE, Issaquah: $9,104,914 (2025-04), 53,745 SF, $169.41/SF, built 1985, 20.6 mi away (different city)
Recorded arm's-length sales of similar buildings nearby; nearer and more recent sales rank first. Buyer and seller names are withheld. Get this data via API.
Market context: Commercial in Auburn
median verified sale $263.45/SF over the trailing 24 months; 5 sales in the last 12 months and 8 in 24 (newest verified sale 2025-12).
- 2021: $325.35/SF median (4 sales)
- 2025: $263.45/SF median (4 sales)
Computed from 109 verified arm's-length sales in King County public records (8 in the trailing 24 months). Free public records. Not an appraisal.
Ownership tenure is not asserted for this parcel: the most recent recorded transfer is a non-market conveyance.
- 2019-01-29: $38,126,888 from Merrill Gardens LLC to Shi-III Merrill JV Company III LLLP (non-market transfer), rec. 20190129001006
- 2019: transferred to Merrill Gardens at Auburn II LLC, no consideration (4 recorded transfers, 2015 to 2019)
- 2013-12-27: $890,990 from City of Auburn to MW Holdings Auburn SW Block LLC (part of a 10-parcel sale; price is the whole deal), rec. 20131227000291
- 2007-10-23: $1,830,920 from Private party to City of Auburn (part of a 2-parcel sale; price is the whole deal), rec. 20071024000253
- 1997-01-01: $495,000 from Private party to Private party (part of a 2-parcel sale; price is the whole deal), rec. 199701030952
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 $108,000 (2010) to $34,727,800 (2026), up 32055% over 16 years, per county tax rolls. The 2026 roll splits $34,727,800 into $1,791,800 land and $32,936,000 improvements.
- Zoning: DUC (per King County)
- Lot: 59,728 sq ft
- Water: Water District (per King County)
- Sewer: Public (per King County)
- Access: Public
- Street surface: Paved
- Floor and use mix: Home For The Elderly 137,095 SF; Underground Parking Structure 32,218 SF (county building sections)
- County districts report (schools, fire, sewer, council; on kingcounty.gov)