King County property record for 1900 18th Ave S, Seattle, WA 98144
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,910 sqft · built 1909 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $8,702 (2026) |
| Deeds & Mortgages | Jul 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 149830-1655 |
| Primary APN | 149830-1655 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 1,910 sqft Living Area |
| Gross Area | 2,370 sqft |
| 1st Floor Area | 910 sqft |
| Upper Floors Area | 550 sqft |
| Basement Area | 910 sqft |
| Finished Basement | 450 sqft |
| Unfinished Basement | 460 sqft |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1909 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Detached |
| Garage Area | 190 sqft |
| Porch | Open Porch |
| Porch Area | 150 sqft |
| Heating Fuel | Electric |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 149830165507 |
|---|---|
| Street Address | 1900 18TH AVE S |
| City | SEATTLE |
| State | WA |
| Zip | 98144-4322 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RSL (M) |
| Legal Description | CENTRAL SEATTLE PLAT BLOCK: 28 PLAT LOT: 5 |
| Legal Range | 04 |
| Legal Township | 24 |
| Legal Section | 09 |
| Legal Subdivision | CENTRAL SEATTLE |
| Legal Block | 28 |
| Legal Lot Number | 5 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 9400 |
1900 18th Ave S is owned and occupied by an individual who acquired it in April 2015.
Source: King County records, as of July 7, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1900 18TH AVE S, SEATTLE, WA 98144-4322 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Apr 6, 2015 |
| Transfer Doc | 0000001178 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Jul 9, 2018 |
| Property Address | 1900 18TH AVE S, SEATTLE, WA 98144-4322 |
| Document Number | 0000000605 |
| Instrument Date | Jul 1, 2018 |
| Instrument | 201807090605 |
| Transaction Type | Transfer |
| Record Updated | Jul 18, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Address | 1900 18TH AVE S SEATTLE WA 981444322, SEATTLE, WA 98144-4322 |
The 2026 property tax bill for 1900 18th Ave S was $8,702.
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 | $8,702.00 | ||
| 2025 | $795,000 (+3.52%) Land $573,000 Building $222,000 | $795,000 (+3.52%) Land $573,000 Building $222,000 | |
| 2024 | $7,845.00 | $768,000 Land $573,000 Building $195,000 | $768,000 Land $573,000 Building $195,000 |
| 2022 | $6,964.00 | $773,000 Land $438,000 Building $335,000 | $773,000 Land $438,000 Building $335,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 1900 18th Ave S in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1994.
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 |
| Nearby Flood Claims | 1 (1994) |
| Most Recent Claim | Dec 1994 · other causes |
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.
The area around 1900 18th Ave S has no burnable land within ember reach, so its wildfire risk is not rated.
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 913 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 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Google Fiber.
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