King County property record for 710 21st Ave, Seattle, WA 98122
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,400 sqft · built 1917 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $365,000 (Sep 2014) |
| Tax Bill | $9,843 (2026) |
| Deeds & Mortgages | Oct 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 912610-1201 |
| Primary APN | 912610-1201 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 2 Stories |
| Building Area | 1,400 sqft Living Area |
| Gross Area | 2,380 sqft |
| 1st Floor Area | 1,000 sqft |
| 2nd Floor Area | 400 sqft |
| Basement Area | 980 sqft |
| Year Built | Built 1917 |
|---|---|
| Effective Year Built | Effective 2018 |
| Lot Area | 4,800 sqft (0.11 acres) |
| Porch | Open Porch |
| Porch Area | 90 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 912610120103 |
|---|---|
| Street Address | 710 21ST AVE |
| City | SEATTLE |
| State | WA |
| Zip | 98122-4766 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RSL (M) |
| Legal Description | WALLA WALLA ADD S 10 FT OF 6 & ALL 7 |
| Legal Range | 04 |
| Legal Township | 25 |
| Legal Section | 33 |
| Legal Subdivision | WALLA WALLA ADD |
| Legal Block | 12 |
| Legal Lot Number | 6-7 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 8700 |
710 21st Ave is owned and occupied by two individuals who acquired it in October 2017.
Source: King County records, as of July 7, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 710 21ST AVE, SEATTLE, WA 98122-4766 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Sep 18, 2014 · Amount on File |
| Deed Sale | Sep 18, 2014 · Amount on File |
| Prior Sale | May 16, 2006 · Amount on File |
| Deed Document Number | 20141273 |
| Last Transfer Date | Oct 18, 2017 |
| Transfer Doc | 0000001528 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Oct 23, 2017 |
| Property Address | 710 21ST AVE, SEATTLE, WA 98122-4766 |
| Document Number | 0000001528 |
| Map Reference | VOL5 PG81 |
| Instrument Date | Oct 18, 2017 |
| Instrument | 20171023001528 |
| Transaction Type | Transfer |
| Record Updated | Jul 30, 2021 |
| Title Company | NEXTITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 710 21ST AVE, SEATTLE, WA 98122-4766 |
| Document Number | 0000001529 |
|---|---|
| Date | Oct 23, 2017 |
| Instrument | 20171023001529 |
| Name | FINANCE OF AMERICA MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2047 |
The 2026 property tax bill for 710 21st Ave was $9,843.
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 | $9,843.00 | ||
| 2025 | $920,000 (+3.72%) Land $644,000 Building $276,000 | $920,000 (+3.72%) Land $644,000 Building $276,000 | |
| 2024 | $8,847.00 (+11.99%) | $887,000 Land $632,000 Building $255,000 | $887,000 Land $632,000 Building $255,000 |
| 2023 | $7,900.00 | ||
| 2022 | $7,900.00 | $910,000 Land $545,000 Building $365,000 | $910,000 Land $545,000 Building $365,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 710 21st Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2014.
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 |
| Nearby Flood Claims | 2 (2014–2015) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Mar 2015 · 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 710 21st 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 929 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: T-Mobile.
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