1129 20th Ave E, Seattle, WA 98112 Property Records

King County property record for 1129 20th Ave E, Seattle, WA 98112

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,990 sqft · built 1913
Lot Size	0.099 acres (4,320 sqft)
Owner	Company Name on Record
Last Sale	$1,225,000 (Mar 2015)
Tax Bill	$19,577 (2026)
Deeds & Mortgages	Jul 2022 Line of Credit Nov 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`133830-0555`

Property Details

APN / Parcel Number

Primary APN	`133830-0555`
Alternative APN	`133830055504`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	2 Half Baths
Stories	2 Stories
Building Area	2,990 sqft Living Area
Gross Area	3,240 sqft
1st Floor Area	1,050 sqft
2nd Floor Area	1,140 sqft
Basement Area	1,050 sqft
Finished Basement	800 sqft
Unfinished Basement	250 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1913
Effective Year Built	Effective 1913
Lot Area	4,320 sqft (0.099 acres)
Garage Type	Detached
Garage Area	300 sqft
Parking Spaces	1 Parking Space
Porch	Open Porch
Porch Area	200 sqft
Deck Area	100 sqft

Utilities, Heating & Cooling

Heating System	Hot Water
Heating Fuel	Electric
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Account Number	133830055504
Street Address	1129 20TH AVE E
City	SEATTLE
State	WA
Zip	98112-3508
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	NR3
Legal Description	CAPITOL HILL ADD DIV # 5 PLAT BLOCK: 38 PLAT LOT: 10
Legal Range	04
Legal Township	25
Legal Section	28
Legal Subdivision	CAPITOL HILL ADD DIV NO. 05
Legal Block	38
Legal Lot Number	10
Jurisdiction	KING WA
Township / Civil Division	SEATTLE
Census Block Group	3
Census Block	3006
Census Tract	6400

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	1129 20TH AVE E, SEATTLE, WA 98112-3508
Owner Type	Company

Deeds, Mortgages & Sale History

Date	Document
Jul 19, 2022	Deed of Trust, Mortgage · Line of Credit BOEING EMPLOYEES CU
Nov 25, 2020	Deed of Trust, Mortgage · Conventional Mortgage 1ST SECURITY BANK OF WASHINGTON

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 30, 2015 · Amount on Record
Deed Sale	Mar 30, 2015 · Amount on Record
Deed Document Number	20151729
Record Updated	Sep 20, 2026

July 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	1129 20TH AVE E, SEATTLE, WA 98112-3508
Transaction Type	Mortgage
Record Updated	Jul 29, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000000678
Date	Jul 19, 2022
Instrument	20220719000678

Lender

Name	BOEING EMPLOYEES CU
Type	Credit Union
Address	SEATTLE, WA 98124

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	300 Months
Due	Jul 13, 2047

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KING WA
Property Address	1129 20TH AVE E, SEATTLE, WA 98112-3508
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	WFG NATIONAL TITLE INSURANCE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000002261
Date	Nov 25, 2020
Instrument	20201125002261

Lender

Name	1ST SECURITY BANK OF WASHINGTON
Type	Bank
Address	MOUNTLAKE TERRACE, WA 98043

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2050

Tax Assessment & Valuation

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	$19,577.00 (+10.65%)
2025	$17,693.00	$1,913,000 (+2.85%) Land $927,000 Building $986,000	$1,913,000 (+2.85%) Land $927,000 Building $986,000
2024	$17,693.00 (+8.1%)	$1,860,000 (-4.76%) Land $927,000 Building $933,000	$1,860,000 (-4.76%) Land $927,000 Building $933,000
2022	$16,368.00	$1,953,000 Land $889,000 Building $1,064,000	$1,953,000 Land $889,000 Building $1,064,000

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

Flood

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

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 851 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
Verizon Fixed Wireless	1,000 / 75
AT&T Fixed Wireless	100 / 20

May also be available: Astound Broadband, T-Mobile.

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