King County property record for 999 3rd Ave, Seattle, WA 98104
| Property Type | Commercial Office |
|---|---|
| Details | 1,325,986 sqft · built 1983 |
| Lot Size | 1.29 acres (56,400 sqft) |
| Owner | Company Name on File |
| Last Sale | $389,900,000 (May 2013) |
| Tax Bill | $2,242,228 (2026) |
| Deeds & Mortgages | Jul 2019 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 093900-0435 |
| Primary APN | 093900-0435 |
|---|---|
| Alternative APN |
|
| Stories | 47 Stories |
|---|---|
| Building Area | 1,325,986 sqft Gross Area |
| Elevator | Elevator |
| Year Built | Built 1983 |
|---|---|
| Effective Year Built | Effective 2010 |
| Architectural Style | Custom Design |
| Construction Type | Steel Frame |
| Fire Resistance | Fireproof Steel Frame |
| Lot Area | 56,400 sqft |
| Garage Area | 242,952 sqft |
| Parking Spaces | 760 Parking Spaces |
| Lawn Sprinklers | Lawn Sprinklers |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 093900043501 |
|---|---|
| Street Address | 999 3RD AVE |
| City | SEATTLE |
| State | WA |
| Zip | 98104-4019 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Local Zoning Code | DOC1 U/450 |
| Legal Description | BOREN & DENNYS ADD ALL BLK 10 INCLUDING LOTS 1 THRU 8 & VAC ALLEY ADJ LESS POR FOR 2ND & 3RD AVES |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 32 |
| Legal Subdivision | BOREN & DENNYS ADD |
| Legal Block | 10 |
| Legal Lot Number | 1-8 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 1 |
| Census Block | 1024 |
| Census Tract | 8102 |
999 3rd Ave, a commercial property, is owned by a company that acquired it in June 2019.
Source: King County records, as of July 7, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX A3879, CHICAGO, IL 60690-3879 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 31, 2013 · Amount on File |
| Deed Sale | May 31, 2013 · Amount on File |
| Prior Sale | Apr 24, 2007 · Amount on File |
| Deed Document Number | 20131195 |
| Last Transfer Date | Jun 28, 2019 |
| Transfer Doc | 0000000731 |
| Record Updated | Oct 29, 2026 |
| Document Type | Bargain and Sale Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Jul 1, 2019 |
| Property Address | 999 3RD AVE, SEATTLE, WA 98104-4019 |
| Document Number | 0000000731 |
| Map Reference | VOL 1 PG 27 |
| Instrument Date | Jun 28, 2019 |
| Instrument | 20190701000731 |
| Transaction Type | Transfer |
| Record Updated | Sep 15, 2021 |
| Title Company | CHICAGO TITLE NCS |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 0000000732 |
|---|---|
| Date | Jul 1, 2019 |
| Instrument | 20190701000732 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
The 2026 property tax bill for 999 3rd Ave was $2,242,228, down 0.9% from the year before.
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 | $2,242,228.00 (-0.9%) | ||
| 2025 | $2,262,551.00 | $224,971,000 (-8.08%) Land $90,240,000 Building $134,731,000 | $224,971,000 (-8.08%) Land $90,240,000 Building $134,731,000 |
| 2024 | $2,262,551.00 | $244,757,000 Land $90,240,000 Building $154,517,000 | $244,757,000 Land $90,240,000 Building $154,517,000 |
| 2022 | $4,182,475.00 | $513,843,000 Land $87,420,000 Building $426,423,000 | $513,843,000 Land $87,420,000 Building $426,423,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 999 3rd Ave in Zone X, an area of minimal flood risk.
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.
The area around 999 3rd Ave 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 149 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 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: CenturyLink, Google Fiber, T-Mobile, Taluslink, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures