3409 18th Ave S, Seattle, WA 98144 Property Records

King County property record for 3409 18th Ave S, Seattle, WA 98144

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 720 sqft · built 1913
Lot Size	0.042 acres (1,836 sqft)
Owner	2 Individual Names on File
Last Sale	$93,500 (Dec 1997)
Tax Bill	$5,747 (2026)
Deeds & Mortgages	Nov 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`372680-0270`

Property Details

APN / Parcel Number

Primary APN	`372680-0270`
Alternative APN	`372680027003`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Stories	1 Story
Building Area	720 sqft Living Area
Gross Area	1,080 sqft
1st Floor Area	720 sqft
Basement Area	360 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1913
Effective Year Built	Effective 1913
Lot Area	1,836 sqft (0.042 acres)
Porch	Open Porch
Porch Area	40 sqft
Deck Area	120 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	372680027003
Street Address	3409 18TH AVE S
City	SEATTLE
State	WA
Zip	98144-6703
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LR2 (M)
Legal Description	JOHNSON J B COS 1ST ADD E 51 FT MEAS ON N LN PLAT BLOCK: 4 PLAT LOT: 3
Legal Range	04
Legal Township	24
Legal Section	16
Legal Subdivision	JOHNSON J B COS 1ST ADD
Legal Block	4
Legal Lot Number	3
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	1
Census Block	1022
Census Tract	10002

Owner

3409 18th Ave S is owned and occupied by two individuals who acquired it in October 2023.

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

Owner of Record	2 Individual Names on File
Mailing Address	3409 18TH AVE S, SEATTLE, WA 98144-6703
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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	Dec 18, 1997 · Amount on File
Deed Sale	Dec 18, 1997 · Amount on File
Deed Document Number	19971004
Last Transfer Date	Oct 6, 2023
Transfer Doc	0000000718
Record Updated	Sep 20, 2026

November 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	KING WA
Recording Date	Nov 9, 2023
Property Address	3409 18TH AVE S, SEATTLE, WA 98144-6703
Document Number	0000000718
Map Reference	VOL 18 PG 2
Instrument Date	Oct 6, 2023
Instrument	20231109000718
Transaction Type	Transfer
Record Updated	Nov 23, 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
Address	3409 18TH AVE S, SEATTLE, WA 98144-6703

Tax Assessment & Valuation

The 2026 property tax bill for 3409 18th Ave S was $5,747.

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	$5,747.00
2025		$553,000 (+3.56%) Land $356,000 Building $197,000	$553,000 (+3.56%) Land $356,000 Building $197,000
2024	$5,164.00	$534,000 Land $356,000 Building $178,000	$534,000 Land $356,000 Building $178,000
2022	$4,797.00	$562,000 Land $272,000 Building $290,000	$562,000 Land $272,000 Building $290,000

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

Flood

FEMA maps place 3409 18th Ave S 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

The area around 3409 18th Ave S 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 620 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
CenturyLink Fiber	2,000 / 1,000
Astound Broadband Cable	1,500 / 50
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20