King County property record for 509 23rd Ave E, Seattle, WA 98112
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 1.5 ba · 1,870 sqft · built 1910 |
| Lot Size | 0.096 acres (4,200 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $280,000 (Apr 2002) |
| Tax Bill | $9,560 (2026) |
| Deeds & Mortgages | Aug 2021 Mortgage Jun 2024 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 134430-0200 |
| Primary APN | 134430-0200 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,870 sqft Living Area |
| Gross Area | 2,910 sqft |
| 1st Floor Area | 970 sqft |
| Upper Floors Area | 900 sqft |
| Basement Area | 750 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Lot Area | 4,200 sqft (0.096 acres) |
| View / Lot | Highway |
| Garage Type | Attached |
| Garage Area | 290 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 210 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 134430020005 |
|---|---|
| Street Address | 509 23RD AVE E |
| City | SEATTLE |
| State | WA |
| Zip | 98112-4701 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | NR3 |
| Legal Description | CAPITOL HILL HEIGHTS ADD PLAT BLOCK: 3 PLAT LOT: 6 |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 28 |
| Legal Subdivision | CAPITOL HILL HEIGHTS ADD |
| Legal Block | 3 |
| Legal Lot Number | 6 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 7600 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 509 23RD AVE E, SEATTLE, WA 98112-4701 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Date | Document |
|---|---|
| Aug 11, 2021 | Deed of Trust, Mortgage · Conventional Mortgage UMPQUA BANK |
| Jun 5, 2024 | Deed of Trust, Mortgage · Line of Credit BOEING EMPLOYEES CU |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 26, 2002 · Amount on Record |
| Deed Sale | Apr 26, 2002 · Amount on Record |
| Deed Document Number | 20021320 |
| Last Transfer Date | May 10, 2016 |
| Transfer Doc | 0000000284 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 509 23RD AVE E, SEATTLE, WA 98112-4701 |
| Transaction Type | Mortgage |
| Record Updated | Dec 25, 2025 |
| Name | Verified Name |
|---|
| Document Number | 0000001092 |
|---|---|
| Date | Aug 11, 2021 |
| Instrument | 20210811001092 |
| Name | UMPQUA BANK |
|---|---|
| Type | Bank |
| Address | PORTLAND, OR 97224 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 509 23RD AVE E, SEATTLE, WA 98112-4701 |
| Transaction Type | Mortgage |
| Record Updated | Dec 25, 2025 |
| Name | Verified Name |
|---|
| Document Number | 0000000353 |
|---|---|
| Date | Jun 5, 2024 |
| Instrument | 20240605000353 |
| Name | BOEING EMPLOYEES CU |
|---|---|
| Type | Credit Union |
| Address | SEATTLE, WA 98124 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 299 Months |
| Due | May 30, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
Source: King County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | King County |
| Municipality | Seattle City |
| Unified School District | Seattle Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $9,560.00 (+5.74%) | ||
| 2025 | $902,000 (-1.85%) Land $666,000 Building $236,000 | $902,000 (-1.85%) Land $666,000 Building $236,000 | |
| 2024 | $9,041.00 (+0.69%) | $919,000 (-11.89%) Land $666,000 Building $253,000 | $919,000 (-11.89%) Land $666,000 Building $253,000 |
| 2022 | $8,979.00 | $1,043,000 Land $458,000 Building $585,000 | $1,043,000 Land $458,000 Building $585,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 |
| Nearby Flood Claims | 1 (2017) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, Landslides, 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.
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.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 1,164 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| CenturyLink Fiber · DSL in parts of the area | 8,000 / 8,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, T-Mobile.
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