King County property record for 1818 E Prospect St, Seattle, WA 98112
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,940 sqft · built 1909 |
| Lot Size | 0.083 acres (3,600 sqft) |
| Owner | Company Name on File |
| Last Sale | $499,500 (Jan 2005) |
| Tax Bill | $14,217 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 133780-0075 |
| Primary APN | 133780-0075 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Half Baths | 2 Half Baths |
| Stories | 1 Story |
| Building Area | 2,940 sqft Living Area |
| 1st Floor Area | 1,160 sqft |
| Upper Floors Area | 980 sqft |
| Basement Area | 800 sqft |
| Finished Basement | 800 sqft |
| Hobby Room | Hobby Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Elevator | Elevator |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1909 |
| Lot Area | 3,600 sqft (0.083 acres) |
| Porch | Open Porch |
| Porch Area | 100 sqft |
| Deck Area | 100 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 133780007505 |
|---|---|
| Street Address | 1818 E PROSPECT ST |
| City | SEATTLE |
| State | WA |
| Zip | 98112-3308 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | NR3 |
| Legal Description | CAPITOL HILL ADD DIV # 4 E 40 FT OF W 75 FT |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 28 |
| Legal Subdivision | CAPITOL HILL ADD DIV NO. 04 |
| Legal Block | 25 |
| Legal Lot Number | 15-16 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 6400 |
Source: King County assessment roll, 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 File |
|---|---|
| Mailing Address | PO BOX 80157, SEATTLE, WA 98108-0157 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jan 11, 2005 · Amount on Record |
| Deed Sale | Jan 11, 2005 · Amount on Record |
| Deed Document Number | 2005536 |
| 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 | $14,217.00 (+5.81%) | ||
| 2025 | $1,372,000 (-1.79%) Land $889,000 Building $483,000 | $1,372,000 (-1.79%) Land $889,000 Building $483,000 | |
| 2024 | $13,436.00 (+5.08%) | $1,397,000 (-7.61%) Land $889,000 Building $508,000 | $1,397,000 (-7.61%) Land $889,000 Building $508,000 |
| 2022 | $12,787.00 | $1,512,000 Land $805,000 Building $707,000 | $1,512,000 Land $805,000 Building $707,000 |
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 |
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 |
|---|
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 851 locations within half a mile, as of December 31, 2025
| 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 |
May also be available: Radiate Holdings, T-Mobile USA.
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