King County property record for 1100 9th Ave, Seattle, WA 98101
| Property Type | Commercial Office |
|---|---|
| Details | 126,958 sqft · built 1975 |
| Lot Size | 0.353 acres (15,360 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $3,339 (2024) |
| Deeds & Mortgages | Aug 2017 Loan Modification |
| Flood Zone | Zone X (minimal risk) |
| APN | 197920-0225 |
| Primary APN | 197920-0225 |
|---|---|
| Alternative APN |
|
| Stories | 8 Stories |
|---|---|
| Building Area | 126,958 sqft Gross Area |
| Basement Area | 15,290 sqft |
| Elevator | Elevator |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Custom Design |
| Construction Type | Concrete |
| Fire Resistance | Fireproof Reinforced Concrete |
| Lot Area | 15,360 sqft (0.353 acres) |
| Lawn Sprinklers | Lawn Sprinklers |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 197920022500 |
|---|---|
| Street Address | 1100 9TH AVE |
| City | SEATTLE |
| State | WA |
| Zip | 98101-2756 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | MIO-240-HR |
| Legal Description | DENNYS A A EXTENSION TERRYS 1ST & ALL VAC ALLEY ADJ |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 32 |
| Legal Subdivision | DENNYS A A EXTENSION TERRYS 1ST |
| Legal Block | 75 |
| Legal Lot Number | 5 & 8 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 8300 |
Source: King County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | PO BOX 900, SEATTLE, WA 98111-0900 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Aug 30, 2017 |
| Property Address | 1100 9TH AVE, SEATTLE, WA 98101-2756 |
| Document Number | 0000001574 |
| Instrument Date | Aug 24, 2017 |
| Instrument | 201708301574 |
| Transaction Type | Mortgage |
| Record Updated | Sep 8, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Document Number | 1574 |
|---|---|
| Date | Aug 30, 2017 |
| Instrument | 201708301574 |
| Name | BANK OF NY MELLON |
|---|---|
| Type | Bank |
| Address | 400 S HOPE ST # 500, LOS ANGELES, CA 90071-2927 |
| Amount | Amount Recorded |
|---|
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 |
|---|---|---|---|
| 2025 | $30,912,000 (-9.94%) Land $8,832,000 Building $22,080,000 | $30,912,000 (-9.94%) Land $8,832,000 Building $22,080,000 | |
| 2024 | $3,339.00 (+15.02%) Additional exemption filed | $34,324,000 (-9.91%) Land $8,832,000 Building $25,492,000 | $34,324,000 (-9.91%) Land $8,832,000 Building $25,492,000 |
| 2022 | $2,903.00 Additional exemption filed | $38,098,000 Land $8,832,000 Building $29,266,000 | $38,098,000 Land $8,832,000 Building $29,266,000 |
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 204 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 |
May also be available: AT&T, CenturyLink, Google Fiber, T-Mobile.
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