129 21st Ave E, Seattle, WA 98112 Property Records

King County property record for 129 21st Ave E, Seattle, WA 98112 · Last verified August 2026

Property Highlights

Property Type	Residential > Multi-Unit > Quadplex
Bedrooms	4 Beds
Bathrooms	2 Baths
Architecture Style	Custom Design
Year Built	Built 1978
Square Footage	1,884 sqft Adjusted Area
Lot Size	4,755 sqft (0.109 acres)
Last Sale	$700,000 (2006)
Tax Bill	$15,994.00 (2026)

Property Details

APN / Parcel Number

Primary APN	`095500-0370`
Alternative APN	`095500037007`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Units	5 Units
Building Area	1,884 sqft Adjusted Area
Gross Area	1,926 sqft Gross Area
Stories	1 Stories
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 1916
Effective Year Built	Effective 1978
Architectural Style	Custom Design Style
Construction Type	Wood Construction
Lot Area	4,755 sqft (0.109 acres)
Porch Area	90 sqft Porch

Utilities and HVAC

Cooling System	Wall Unit Cooling
Heating System	Floor/Wall Furnace Heating
Heating Fuel	Electric Heating Fuel
Sewage	Municipal Sewage
Water Source	Commercial Water Source

Location & Zoning

Account Number	095500037007
Street Address	129 21ST AVE E
City	SEATTLE
State	WA
Zip	98112-5327
Property Usage	Residential Property Usage
Type	Residential > Multi-Unit > Quadplex
Legal Description	BOSTON HEIGHTS ADD LOT 7 TGW S 40 FT OF N 80 FT OF LOT 7 BLK 4 JANSENS ADD PLAT BLOCK: 5 PLAT LOT: 7
Legal Range	04
Legal Township	25
Legal Section	28
Legal Subdivision	BOSTON HEIGHTS ADD
Legal Block	5
Legal Lot Number	7
Jurisdiction	KING WA
Minor Civil Division	SEATTLE
Census Blockgroup	2
Census Block	2008
Census Tract	7600

Owner

Source: King County records · APN 095500-0370

Assessment roll updated July 7, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	4010 HIGHLAND BLVD, STATEN ISLAND, NY 10308
Owner Type	Owner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 10, 2006 · Amount on Record
Deed Sale	Oct 10, 2006 · Amount on Record
Prior Sale	Apr 30, 2004 · Amount on Record
Deed Doc Number	20062230
Record Refreshed	Sep 20, 2026

January 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	129 21ST AVE E, SEATTLE, WA 98112-5327
Document Number	0000000010
Instrument Date	Jan 11, 2019
Transaction Type	Mortgage
Record Updated	Jan 24, 2019
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband And Wife
Address	388 EDINBORO RD STATEN ISLAND NY 103061253, STATEN ISLAND, NY 10306-1253

Mortgage

Document Number	0000000010
Date	Jan 14, 2019
Instrument	201901140010

Lender

Name	ATHAS CAP
Type	Funding / Finance Company
Address	CALABASAS, CA 91301

Agreement

Type	Conventional Mortgage with Private Mortgage Insurance (PMI)
Amount	Amount Recorded
Term	24 Months
Due	Jan 13, 2021

Tax Assessment & Valuation

Source: King County records · Assessment roll updated July 7, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Washington
County	King County
Municipality	Seattle City
Unified School District	Seattle Public Schools (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$15,994.00 (+9.52%)
2025	$14,604.00 (-77.41%)	$1,550,000 (+1.8%) Land $1,521,000 Building $29,000	$1,550,000 (+1.8%) Land $1,521,000 Building $29,000
2024	$64,645.00 (+35.99%)	$1,522,600 (+22.3%) Land $1,521,600 Building $1,000	$1,522,600 (+22.3%) Land $1,521,600 Building $1,000
2022	$47,535.00	$1,245,000 Land $1,164,900 Building $80,100	$1,245,000 Land $1,164,900 Building $80,100