521 N 90th St, Seattle, WA 98103 Property Records

King County property record for 521 N 90th St, Seattle, WA 98103

Property Summary

Property Type	Single Family Home
Details	2 bd · 1.75 ba · 990 sqft · built 1941
Lot Size	0.096 acres (4,200 sqft)
Owner	2 Individual Names on File
Last Sale	$640,000 (Apr 2018)
Tax Bill	$7,647 (2026)
Deeds & Mortgages	Jun 2026 Line of Credit Apr 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`643150-0152`

Property Details

APN / Parcel Number

Primary APN	`643150-0152`
Alternative APN	`643150015201`

Interior

Bedrooms	2 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Stories	1 Story
Building Area	990 sqft Living Area
1st Floor Area	990 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace
Elevator	Elevator

Exterior

Year Built	Built 1941
Effective Year Built	Effective 1941
Lot Area	4,200 sqft (0.096 acres)
Garage Type	Attached
Garage Area	250 sqft
Shed	1 Shed

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	643150015201
Street Address	521 N 90TH ST
City	SEATTLE
State	WA
Zip	98103-3712
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NR3
Legal Description	OSNERS SUBURBAN HOMES ADD N 60 FT OF E 80 FT LESS CO RD PLAT BLOCK: 3 PLAT LOT: 5
Legal Range	04
Legal Township	26
Legal Section	31
Legal Subdivision	OSNERS SUBURBAN HOMES ADD
Legal Block	3
Legal Lot Number	5
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	2
Census Block	2013
Census Tract	1701

Owner

521 N 90th St is owned and occupied by two individuals who bought it in April 2018.

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

Owner of Record	2 Individual Names on File
Mailing Address	521 N 90TH ST, SEATTLE, WA 98103-3712
Occupancy	Owner Occupied
Owner Type	Individual

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
Jun 15, 2026	Deed of Trust, Mortgage · Line of Credit BOEING EMPLOYEES CREDIT UNION
Apr 30, 2020	Deed of Trust, Mortgage · Conventional Mortgage BETTER MTG CORP ISAOA
Apr 5, 2018	Warranty Deed, Transfer · Conventional Mortgage SOFI LNDG

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 5, 2018 · Amount on File
Deed Sale	Apr 5, 2018 · Amount on File
Prior Sale	Apr 29, 2013 · Amount on File
Deed Document Number	2018709
Prior Transfer Date	Mar 26, 2004
Prior Transfer Doc	0000002377
Record Updated	Oct 29, 2026

June 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Recording Date	Jun 15, 2026
Property Address	521 N 90TH ST, SEATTLE, WA 98103-3712
Document Number	0000000177
Instrument Date	Jun 15, 2026
Instrument	2026177
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	521 N 90TH ST, SEATTLE, WA 98103-3712

Mortgage

Document Number	0000000177,
Date	Jun 15, 2026
Instrument	2026177

Lender

Name	BOEING EMPLOYEES CREDIT UNION

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	300 Months
Due	Jun 10, 2051

Interest

Rate Type	Adjustable Rate
Rate	6.36%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

April 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	521 N 90TH ST, SEATTLE, WA 98103-3712
Document Number	0000001358
Instrument Date	Apr 30, 2020
Transaction Type	Mortgage
Record Updated	May 29, 2020
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	521 N 90TH ST SEATTLE WA 981033712, SEATTLE, WA 98103-3712

Mortgage

Document Number	0000001358
Date	May 21, 2020
Instrument	202005211358

Lender

Name	BETTER MTG CORP ISAOA
Address	NEW YORK, NY 10271

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 20, 2050

April 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	KING WA
Recording Date	Apr 5, 2018
Property Address	521 N 90TH ST, SEATTLE, WA 98103-3712
Document Number	0000000709
Instrument Date	Mar 23, 2018
Instrument	201804050709
Transaction Type	Transfer
Record Updated	Apr 10, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

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

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	521 N 90TH ST SEATTLE WA 981033712, SEATTLE, WA 98103-3712

Mortgage

Document Number	710
Date	Apr 5, 2018
Instrument	201804050710

Lender

Name	SOFI LNDG
Address	HEALDSBURG, CA 95448

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 4, 2048

Tax Assessment & Valuation

The 2026 property tax bill for 521 N 90th St was $7,647.

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	$7,647.00
2025		$709,000 (+2.01%) Land $490,000 Building $219,000	$709,000 (+2.01%) Land $490,000 Building $219,000
2024	$6,981.00	$695,000 Land $477,000 Building $218,000	$695,000 Land $477,000 Building $218,000
2022	$5,594.00	$626,000 Land $419,000 Building $207,000	$626,000 Land $419,000 Building $207,000

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

Flood

FEMA maps place 521 N 90th St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2007.

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 Claims	1 (2007)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Dec 2007 · Severe Storms, Flooding, Landslides, And 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

The area around 521 N 90th 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 936 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
CenturyLink Fiber · DSL in parts of the area	2,000 / 1,000
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband.

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