King County property record for 100 30th Ave S, Seattle, WA 98144
| Property Type | Commercial Office |
|---|---|
| Details | 3,640 sqft · built 1921 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | Company Name on File |
| Last Sale | $505,000 (Sep 2000) |
| Tax Bill | $8,301 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 341660-0595 |
| Primary APN | 341660-0595 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 3,640 sqft Gross Area |
| Year Built | Built 1921 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 4,800 sqft (0.11 acres) |
| View / Lot | Water View |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 341660059500 |
|---|---|
| Street Address | 100 30TH AVE S |
| City | SEATTLE |
| State | WA |
| Zip | 98144 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | LR1 (M) |
| Legal Description | HOLMES H E ADD N 60 FT |
| Legal Range | 04 |
| Legal Township | 24 |
| Legal Section | 04 |
| Legal Subdivision | HOLMES H E ADD |
| Legal Block | 8 |
| Legal Lot Number | 1-2 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 8900 |
100 30th Ave S, a commercial property, is owned by a company that bought it in September 2000.
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 | Company Name on File |
|---|---|
| Mailing Address | 3001 E YESLER WAY, SEATTLE, WA 98122-6363 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 8, 2000 · Amount on File |
| Deed Sale | Sep 8, 2000 · Amount on File |
| Deed Document Number | 2000146 |
| Prior Transfer Date | Aug 21, 2000 |
| Prior Transfer Doc | 0000000146 |
| Record Updated | Sep 20, 2026 |
The 2026 property tax bill for 100 30th Ave S was $8,301.
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 | $8,301.00 | ||
| 2025 | $742,500 (+12.91%) Land $528,000 Building $214,500 | $742,500 (+12.91%) Land $528,000 Building $214,500 | |
| 2024 | $6,944.00 | $657,600 Land $528,000 Building $129,600 | $657,600 Land $528,000 Building $129,600 |
| 2022 | $5,776.00 | $615,900 Land $528,000 Building $87,900 | $615,900 Land $528,000 Building $87,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 100 30th Ave S in Zone X, an area of minimal flood risk.
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.
The area around 100 30th 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 865 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| CenturyLink Fiber | 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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