1233 18th Ave E, Seattle, WA 98112 Property Records

King County property record for 1233 18th Ave E, Seattle, WA 98112

Property Summary

Property Type	Single Family Home
Details	5 bd · 2.25 ba · 2,460 sqft · built 1907
Lot Size	0.11 acres (4,800 sqft)
Owner	2 Individual Names on File
Last Sale	$342,000 (Jan 1997)
Tax Bill	$15,561 (2026)
Flood Zone	Zone X (minimal risk)
APN	`133780-1125`

Property Details

APN / Parcel Number

Primary APN	`133780-1125`
Alternative APN	`133780112503`

Interior

Bedrooms	5 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Stories	2 Stories
Building Area	2,460 sqft Living Area
1st Floor Area	1,020 sqft
2nd Floor Area	940 sqft
Basement Area	500 sqft
Finished Basement	500 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1907
Effective Year Built	Effective 1907
Lot Area	4,800 sqft (0.11 acres)
Porch	Open Porch
Porch Area	190 sqft
Deck Area	200 sqft

Utilities, Heating & Cooling

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

Location & Zoning

Account Number	133780112503
Street Address	1233 18TH AVE E
City	SEATTLE
State	WA
Zip	98112-3320
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NR3
Legal Description	CAPITOL HILL ADD DIV # 4 PLAT BLOCK: 31 PLAT LOT: 6
Legal Range	04
Legal Township	25
Legal Section	28
Legal Subdivision	CAPITOL HILL ADD DIV NO. 04
Legal Block	31
Legal Lot Number	6
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	2
Census Block	2000
Census Tract	6400

Owner

Source: King County records · APN 133780-1125

Assessment roll updated July 7, 2026 · Last verified July 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 File
Mailing Address	1233 18TH AVE E, SEATTLE, WA 98112-3320
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jan 31, 1997 · Amount on Record
Deed Sale	Jan 31, 1997 · Amount on Record
Prior Sale	Jul 07, 1992 · Amount on Record
Deed Document Number	1997955
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: King County records · Assessment roll updated July 7, 2026 · Last verified July 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

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026	$15,561.00 (+5.76%)
2025		$1,497,000 (-1.84%) Land $946,000 Building $551,000	$1,497,000 (-1.84%) Land $946,000 Building $551,000
2024	$14,713.00 (-0.59%)	$1,525,000 (-13.35%) Land $946,000 Building $579,000	$1,525,000 (-13.35%) Land $946,000 Building $579,000
2022	$14,801.00	$1,760,000 Land $901,000 Building $859,000	$1,760,000 Land $901,000 Building $859,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 23, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

May also be available: Radiate Holdings.

Based on FCC filings for 365 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	SEATTLE PUBLIC UTILITIES serves 1,161,961 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.