310 21st Ave E, Seattle, WA 98112 Property Records

King County property record for 310 21st Ave E, Seattle, WA 98112

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.25 ba · 2,320 sqft · built 1986
Lot Size	0.113 acres (4,920 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,950,000 (Apr 2026)
Tax Bill	$13,763 (2026)
Deeds & Mortgages	Apr 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`095800-0220`

Property Details

APN / Parcel Number

Primary APN	`095800-0220`
Alternative APN	`095800022006`

Interior

Bedrooms	5 Beds
Full Baths	4 Baths
Half Baths	3 Half Baths
Stories	3 Stories
Building Area	2,320 sqft Living Area
Gross Area	3,380 sqft
1st Floor Area	1,200 sqft
2nd Floor Area	760 sqft
Upper Floors Area	360 sqft
Basement Area	770 sqft

Exterior

Year Built	Built 1986
Effective Year Built	Effective 1986
Lot Area	4,920 sqft (0.113 acres)
Garage Type	Attached
Garage Area	1,060 sqft
Parking Spaces	3 Parking Spaces
Deck Area	680 sqft

Utilities, Heating & Cooling

Heating System	Heat Pump
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	095800022006
Street Address	310 21ST AVE E
City	SEATTLE
State	WA
Zip	98112-5319
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RSL (M)
Legal Description	BOSTON HEIGHTS SUPL ADD LOT 11 TGW W 12 FT OF LOT 6 TGW W 12 FT OF S 1/2 LOT 5 AKA LOT A SEA LLA #8605282 REC #8701121391
Legal Range	04
Legal Township	25
Legal Section	28
Legal Subdivision	BOSTON HEIGHTS SUPL ADD
Legal Block	3
Legal Lot Number	11
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	2
Census Block	2001
Census Tract	7600

Owner

Source: King County records, as of October 9, 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 Record
Mailing Address	310 21ST AVE E, SEATTLE, WA 98112-5319
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Unmarried

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 23, 2026 · Amount on Record
Deed Sale	Apr 23, 2026 · Amount on Record
Prior Sale	Jan 6, 1997 · Amount on Record
Deed Document Number	2026426
Prior Transfer Date	Mar 9, 1993
Prior Transfer Doc	0003111170
Record Updated	Oct 29, 2026

April 2026: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	KING WA
Recording Date	Apr 23, 2026
Property Address	310 21ST AVE E, SEATTLE, WA 98112-5319
Document Number	0000000426
Instrument Date	Apr 21, 2026
Instrument	2026426
Transaction Type	Transfer
Record Updated	Jul 6, 2026
Title Company	AEGIS LAND TITLE GROUP

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	310 21ST AVE E, SEATTLE, WA 98112-5319

Mortgage

Document Number	0000000427,
Date	Apr 23, 2026
Instrument	20260423427

Lender

Name	MORTGAGE MORTGAGE

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 1, 2056

Interest

Rate Type	Fixed Rate
Rate	6.11%
Initial Type	Fixed Rate
Max Rate	-1%

Tax Assessment & Valuation

Source: King County assessment roll, as of July 7, 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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$13,763.00 (+286.38%)
2025	$3,562.00 Senior Citizen's exemption	$1,765,000 (-1.84%) Land $1,423,000 Building $342,000	$1,765,000 (-1.84%) Land $1,423,000 Building $342,000
2024	$3,562.00 (-74.74%) Senior Citizen's exemption	$1,798,000 (+7.41%) Land $1,423,000 Building $375,000	$1,798,000 (+7.41%) Land $1,423,000 Building $375,000
2022	$14,102.00	$1,674,000 Land $584,000 Building $1,090,000	$1,674,000 Land $584,000 Building $1,090,000

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 23, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	SEATTLE PUBLIC UTILITIES serves 1,161,961 people · EPA ID WA5377050
Water Source	Surface water
Last State Inspection	Jul 2025
Lead	2 ppb (2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 878 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable · Fiber in parts of the area	2,000 / 2,000
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50
Verizon Fixed Wireless	1,000 / 75
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: CenturyLink, Google Fiber.

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