509 21st Ave E, Seattle, WA 98112 Property Records

King County property record for 509 21st Ave E, Seattle, WA 98112

Property Summary

Property Type	Single Family Home
Details	4 bd · 1 ba · 1,840 sqft · built 1924
Lot Size	0.11 acres (4,800 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,325,000 (May 2023)
Tax Bill	$14,837 (2026)
Deeds & Mortgages	May 2023 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`814120-0055`

Property Details

APN / Parcel Number

Primary APN	`814120-0055`
Alternative APN	`814120005503`

Interior

Bedrooms	4 Beds
Full Baths	1 Bath
Stories	2 Stories
Building Area	1,840 sqft Living Area
Gross Area	3,080 sqft
1st Floor Area	1,240 sqft
2nd Floor Area	600 sqft
Basement Area	1,240 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1924
Effective Year Built	Effective 1924
Lot Area	4,800 sqft (0.11 acres)
Porch	Open Porch
Porch Area	60 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	814120005503
Street Address	509 21ST AVE E
City	SEATTLE
State	WA
Zip	98112-4017
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RSL (M)
Legal Description	SUNSHINE ADD PLAT BLOCK: 1 PLAT LOT: 11
Legal Range	04
Legal Township	25
Legal Section	28
Legal Subdivision	SUNSHINE ADD
Legal Block	1
Legal Lot Number	11
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	1
Census Block	1013
Census Tract	7600

Owner

Source: King County records, as of July 7, 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	509 21ST AVE E, SEATTLE, WA 98112-4017
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 18, 2023 · Amount on Record
Deed Sale	May 18, 2023 · Amount on Record
Prior Sale	Dec 14, 1988
Deed Document Number	2023340
Record Updated	Sep 20, 2026

May 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	KING WA
Recording Date	May 18, 2023
Property Address	509 21ST AVE E, SEATTLE, WA 98112-4017
Document Number	0000000340
Map Reference	VOL 3 PG 95
Instrument Date	May 12, 2023
Instrument	20230518000340
Transaction Type	Transfer
Record Updated	May 29, 2023
Title Company	CW TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$226.45
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	509 21ST AVE E, SEATTLE, WA 98112-4017

Mortgage

Document Number	0000000341
Date	May 18, 2023
Instrument	20230518000341

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2053

Interest

Rate Type	Adjustable Rate
Rate	5.17%
Type Change Date	Jun 1, 2033
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	10.1%
Index	Other
Margin	3
Max Rate	10.1%

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	$14,837.00 (+7.64%)
2025		$1,424,000 (-) Land $1,423,000 Building $1,000	$1,424,000 (-) Land $1,423,000 Building $1,000
2024	$13,784.00 (+39.97%)	$1,424,000 (+23.83%) Land $1,423,000 Building $1,000	$1,424,000 (+23.83%) Land $1,423,000 Building $1,000
2023		$1,150,000 (-) Land $584,000 Building $566,000	$1,150,000 (-) Land $584,000 Building $566,000
2022	$9,848.00	$1,150,000 Land $584,000 Building $566,000	$1,150,000 Land $584,000 Building $566,000

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
Nearby Flood Claims	1 (2017)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Feb 2017 · Severe Winter Storms, Flooding, Landslides, Mudslides

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 851 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
CenturyLink Fiber · DSL in parts of the area	2,000 / 1,000
Verizon Fixed Wireless	1,000 / 75
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband, T-Mobile.

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