521 N 138th St, Seattle, WA 98133 Property Records

King County property record for 521 N 138th St, Seattle, WA 98133

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 770 sqft · built 1947
Lot Size	0.166 acres (7,228 sqft)
Owner	2 Individual Names on File
Tax Bill	$6,734 (2026)
Deeds & Mortgages	Oct 2022 Transfer Feb 2021 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`016400-0268`

Property Details

APN / Parcel Number

Primary APN	`016400-0268`
Alternative APN	`016400026809`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Stories	1 Story
Building Area	770 sqft Living Area
Gross Area	1,060 sqft
1st Floor Area	770 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1947
Effective Year Built	Effective 1947
Lot Area	7,228 sqft (0.166 acres)
Garage Type	Attached
Garage Area	290 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	016400026809
Street Address	521 N 138TH ST
City	SEATTLE
State	WA
Zip	98133-7420
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NR2
Legal Description	ALLENDALE ADD E 1/2 OF N 1/2 PLAT BLOCK: 4 PLAT LOT: 14
Legal Range	04
Legal Township	26
Legal Section	19
Legal Subdivision	ALLENDALE ADD
Legal Block	4
Legal Lot Number	14
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	2
Census Block	2001
Census Tract	404

Owner

521 N 138th St is owned and occupied by two individuals who acquired it in June 2020.

Source: King County records, as of July 7, 2026

Owner of Record	2 Individual Names on File
Mailing Address	521 N 138TH ST, SEATTLE, WA 98133-7420
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Surviving Spouse

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Oct 21, 2022	Intrafamily Transfer, Transfer
Feb 19, 2021	Intrafamily Transfer, Transfer
Jun 29, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jun 18, 2020
Transfer Doc	0000000252
Record Updated	Oct 29, 2026

October 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	KING WA
Recording Date	Oct 21, 2022
Property Address	521 N 138TH ST, SEATTLE, WA 98133-7420
Document Number	0000000859
Map Reference	VOL 12 PG 95
Instrument Date	Sep 26, 2022
Instrument	20221021000859
Transaction Type	Transfer
Record Updated	Nov 2, 2022

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common

February 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	KING WA
Recording Date	Feb 19, 2021
Property Address	521 N 138TH ST, SEATTLE, WA 98133-7420
Document Number	0000001526
Map Reference	VOL 12 PG 95
Instrument Date	Feb 1, 2021
Instrument	20210219001526
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

June 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	KING WA
Recording Date	Jun 29, 2020
Property Address	521 N 138TH ST, SEATTLE, WA 98133-7420
Document Number	0000000252
Instrument Date	Jun 18, 2020
Instrument	202006290252
Transaction Type	Transfer
Record Updated	Jul 8, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	521 N 138TH ST SEATTLE WA 981337420, SEATTLE, WA 98133-7420

Tax Assessment & Valuation

The 2026 property tax bill for 521 N 138th St was $6,734.

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	$6,734.00
2025		$579,000 (+2.84%) Land $446,000 Building $133,000	$579,000 (+2.84%) Land $446,000 Building $133,000
2024	$6,125.00	$563,000 Land $434,000 Building $129,000	$563,000 Land $434,000 Building $129,000
2022	$5,263.00	$542,000 Land $406,000 Building $136,000	$542,000 Land $406,000 Building $136,000

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

Flood

FEMA maps place 521 N 138th St in Zone X, an area of minimal flood risk.

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

The area around 521 N 138th St has no burnable land within ember reach, so its wildfire risk is not rated.

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 546 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
Starlink Satellite	280 / 30
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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