King County property record for 3521 Interlake Ave N, Seattle, WA 98103
| Property Type | Warehouse, Storage |
|---|---|
| Details | 10,080 sqft · built 1947 |
| Lot Size | 0.124 acres (5,418 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,700,000 (Dec 2021) |
| Tax Bill | $16,588 (2026) |
| Deeds & Mortgages | Oct 2025 Mortgage Dec 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 226450-1085 |
| Primary APN | 226450-1085 |
|---|---|
| Alternative APN |
|
| Stories | 2 Stories |
|---|---|
| Building Area | 10,080 sqft Gross Area |
| Basement Area | 4,536 sqft |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Fire Resistance | Wood or Wood & Steel Frame |
| Lot Area | 5,418 sqft (0.124 acres) |
| Heating System | Heat Pump |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 226450108502 |
|---|---|
| Street Address | 3521 INTERLAKE AVE N |
| City | SEATTLE |
| State | WA |
| Zip | 98103 |
| Property Category | Industrial |
| Property Type | Industrial > Warehouse, Storage |
| Local Zoning Code | IC-65 (M) |
| Legal Description | EDGEWATER ADD N 42 FT & POR VAC ALLEY ADJ |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 18 |
| Legal Subdivision | EDGEWATER ADD |
| Legal Block | 11 |
| Legal Lot Number | 8-10 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 5401 |
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 Record |
|---|---|
| Mailing Address | 3521 INTERLAKE AVE N, SEATTLE, WA 98103 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
| Date | Document |
|---|---|
| Oct 2, 2025 | Deed of Trust, Mortgage · Commercial Mortgage HERITAGE SOUTHEAST BANK |
| Dec 21, 2021 | Warranty Deed, Transfer · Stand-Alone First Mortgage FIRST INTERSTATE BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 21, 2021 · Amount on Record |
| Deed Sale | Dec 21, 2021 · Amount on Record |
| Deed Document Number | 20211137 |
| Prior Transfer Date | Apr 27, 2000 |
| Prior Transfer Doc | 0000002056 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 3521 INTERLAKE AVE N, SEATTLE, WA 98103 |
| Transaction Type | Mortgage |
| Record Updated | Jun 4, 2026 |
| Title Company | STEWART TITLE, STEWART TITLE NCS |
| Name | Verified Name |
|---|---|
| Address | 401 N 36TH ST 201, 201, SEATTLE, WA 98103-5679 |
| Document Number | 0000000023 |
|---|---|
| Date | Oct 2, 2025 |
| Instrument | 20251002000023 |
| Name | HERITAGE SOUTHEAST BANK |
|---|---|
| Type | Bank |
| Address | OLYMPIA, WA 98507 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Dec 21, 2021 |
| Property Address | 3521 INTERLAKE AVE N, SEATTLE, WA 98103 |
| Document Number | 0000001137 |
| Map Reference | VOL 3 PG 141 |
| Instrument Date | Dec 21, 2021 |
| Instrument | 20211221001137 |
| Transaction Type | Transfer |
| Record Updated | Jun 4, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $32,305.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 0000001138 |
|---|---|
| Date | Dec 21, 2021 |
| Instrument | 20211221001138 |
| Name | FIRST INTERSTATE BANK |
|---|---|
| Type | Bank |
| Type | Stand-Alone First Mortgage |
|---|---|
| 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 |
|---|---|---|---|
| 2026 | $16,588.00 (+2.76%) | ||
| 2025 | $16,143.00 | $1,545,100 (-5%) Land $1,544,100 Building $1,000 | $1,545,100 (-5%) Land $1,544,100 Building $1,000 |
| 2024 | $16,143.00 (+10.56%) | $1,626,400 (-2.65%) Land $1,625,400 Building $1,000 | $1,626,400 (-2.65%) Land $1,625,400 Building $1,000 |
| 2022 | $14,601.00 | $1,670,600 Land $1,625,400 Building $45,200 | $1,670,600 Land $1,625,400 Building $45,200 |
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 | Low lower than 99.1% of the US · lower than 99.4% of Washington |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 309 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| CenturyLink Fiber | 2,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband.
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