King County property record for 3727 E Prospect St, Seattle, WA 98112
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.25 ba · 3,450 sqft · built 1928 |
| Lot Size | 0.19 acres (8,280 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,075,000 (Apr 1998) |
| Tax Bill | $42,801 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 531710-0205 |
| Primary APN | 531710-0205 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Stories | 2 Stories |
| Building Area | 3,450 sqft Living Area |
| Gross Area | 4,310 sqft |
| 1st Floor Area | 1,560 sqft |
| 2nd Floor Area | 1,450 sqft |
| Basement Area | 1,300 sqft |
| Finished Basement | 440 sqft |
| Unfinished Basement | 860 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1928 |
|---|---|
| Effective Year Built | Effective 1928 |
| Exterior Material | Brick |
| Lot Area | 8,280 sqft (0.19 acres) |
| Garage Type | Detached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio |
| Porch Area | 60 sqft |
| Deck Area | 130 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 531710020508 |
|---|---|
| Street Address | 3727 E PROSPECT ST |
| City | SEATTLE |
| State | WA |
| Zip | 98112-4441 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | NR2 |
| Legal Description | MC GILVRAS REPLAT MC GILVRAS 2ND E 29 FT & VAC W 1/2 OF 38TH AVE N |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 27 |
| Legal Subdivision | MC GILVRAS REPLT MC GILVRAS 2ND |
| Legal Block | 18 |
| Legal Lot Number | 11-12 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 4 |
| Census Block | 4025 |
| Census Tract | 6300 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3727 E PROSPECT ST, SEATTLE, WA 98112-4441 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 24, 1998 · Amount on Record |
| Deed Sale | Apr 24, 1998 · Amount on Record |
| Deed Document Number | 19981677 |
| 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 | $42,801.00 (+11.13%) | ||
| 2025 | $4,219,000 (+3.26%) Land $2,447,000 Building $1,772,000 | $4,219,000 (+3.26%) Land $2,447,000 Building $1,772,000 | |
| 2024 | $38,516.00 (+10.89%) | $4,086,000 (-2.06%) Land $2,447,000 Building $1,639,000 | $4,086,000 (-2.06%) Land $2,447,000 Building $1,639,000 |
| 2022 | $34,735.00 | $4,172,000 Land $2,281,000 Building $1,891,000 | $4,172,000 Land $2,281,000 Building $1,891,000 |
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 | 2 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.
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 509 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, T-Mobile, Verizon.
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