6439 S 120th St, Seattle, WA 98178 Property Records

King County property record for 6439 S 120th St, Seattle, WA 98178

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 1,250 sqft · built 1940
Lot Size	0.312 acres (13,600 sqft)
Owner	2 Individual Names on File
Last Sale	$541,888 (Mar 2022)
Tax Bill	$6,264 (2026)
Deeds & Mortgages	Mar 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`112304-9140`

Property Details

APN / Parcel Number

Primary APN	`112304-9140`
Alternative APN	`112304914008`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Stories	1 Story
Building Area	1,250 sqft Living Area
Gross Area	1,800 sqft
1st Floor Area	860 sqft
Basement Area	860 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1940
Lot Area	13,600 sqft (0.312 acres)
Garage Type	Detached
Garage Area	320 sqft
Parking Spaces	1 Parking Space
Porch	Slab
Porch Area	80 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	112304914008
Street Address	6439 S 120TH ST
City	SEATTLE
State	WA
Zip	98178-3621
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-6
Legal Description	BEG AT NW COR OF NE 1/4 OF SE 1/4 TH N 89-04-08 E 330.37 FT TH S 00-40-48 W 30 FT TO TPOB TH S 00-40-48 W 170 FT TH N 89-04-08 E 80.04 FT TH N 00-40-48 E 170 FT TH S 89-04-08 W 80.04 FT TO TPOB
Legal Range	04
Legal Township	23
Legal Section	11
Legal Block	140
Legal Lot Number	112304
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	2
Census Block	2002
Census Tract	26102

Owner

6439 S 120th St is owned and occupied by two individuals who bought it in March 2022.

Source: King County records, as of October 15, 2026

Owner of Record	2 Individual Names on File
Mailing Address	6439 S 120TH ST, SEATTLE, WA 98178-3621
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Married Couple

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 2, 2022 · Amount on File
Deed Sale	Mar 2, 2022 · Amount on File
Prior Sale	Oct 9, 2007 · Amount on File
Deed Document Number	2022776
Record Updated	Oct 29, 2026

March 2022: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	KING WA
Recording Date	Mar 2, 2022
Property Address	6439 S 120TH ST, SEATTLE, WA 98178-3621
Document Number	0000000776
Instrument Date	Feb 24, 2022
Instrument	20220302000776
Transaction Type	Transfer
Record Updated	Mar 11, 2022
Title Company	FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$8,750.61
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	6439 S 120TH ST, SEATTLE, WA 98178-3621

Mortgage

Document Number	0000000777
Date	Mar 2, 2022
Instrument	20220302000777

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Apr 1, 2052

Tax Assessment & Valuation

The 2026 property tax bill for 6439 S 120th St was $6,264.

Source: King County assessment roll, as of July 7, 2026

Property Jurisdictions

Type	Name
State	Washington
County	King County
Unified School District	Renton School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$6,264.00
2025		$332,000 (-36.76%) Land $331,000 Building $1,000	$332,000 (-36.76%) Land $331,000 Building $1,000
2024	$6,083.00	$525,000 Land $349,000 Building $176,000	$525,000 Land $349,000 Building $176,000
2022	$5,179.00	$471,000 Land $246,000 Building $225,000	$471,000 Land $246,000 Building $225,000

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

Flood

FEMA maps place 6439 S 120th St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 23, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 6439 S 120th St is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 97% of the US · lower than 98% of Washington
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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 376 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
CenturyLink Fiber · DSL in parts of the area	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20