King County property record for 423 Boylston Ave E, Seattle, WA 98102
| Property Type | Triplex |
|---|---|
| Details | 3 bd · 2.75 ba · 2,610 sqft · built 1910 |
| Lot Size | 0.083 acres (3,600 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,175,000 (Jul 2024) |
| Tax Bill | $11,439 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 685070-0665 |
| Primary APN | 685070-0665 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,610 sqft Living Area |
| 1st Floor Area | 870 sqft |
| 2nd Floor Area | 870 sqft |
| Basement Area | 870 sqft |
| Finished Basement | 870 sqft |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Architectural Style | Triplex |
| Lot Area | 3,600 sqft (0.083 acres) |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 685070066509 |
|---|---|
| Street Address | 423 BOYLSTON AVE E |
| City | SEATTLE |
| State | WA |
| Zip | 98102-4903 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | MR (M) |
| Legal Description | PONTIUS A SUPL LESS N 18.24 FT & POR UNPL STRIP ADJ E OF LN PLW & 3 FT E OF E LN BLK 55 SUPL PLAT OF PONTIUS 2ND ADD PLAT BLOCK: 43 PLAT LOT: 2 |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 29 |
| Legal Subdivision | PONTIUS A SUPL |
| Legal Block | 43 |
| Legal Lot Number | 2 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 7403 |
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 | 617 18TH AVE E, SEATTLE, WA 98112-3925 |
| Owner Type | Individual |
| Vesting | Surviving Spouse |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 1, 2024 · Amount on Record |
| Deed Sale | Jul 1, 2024 · Amount on Record |
| Prior Sale | Dec 29, 2005 · Amount on Record |
| Deed Document Number | 2024686 |
| Prior Transfer Date | Jun 25, 2024 |
| Prior Transfer Doc | 0000000687 |
| Record Updated | Sep 20, 2026 |
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 | $11,439.00 (+7.75%) | ||
| 2025 | $1,068,000 (-) Land $1,067,000 Building $1,000 | $1,068,000 (-) Land $1,067,000 Building $1,000 | |
| 2024 | $10,616.00 (+0.84%) | $1,068,000 (-11.81%) Land $1,067,000 Building $1,000 | $1,068,000 (-11.81%) Land $1,067,000 Building $1,000 |
| 2022 | $10,528.00 | $1,211,000 Land $640,000 Building $571,000 | $1,211,000 Land $640,000 Building $571,000 |
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
| 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.
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 332 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Fiber · Cable | 2,000 / 2,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Google Fiber, T-Mobile.
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