King County property record for 421 30th Ave S, Seattle, WA 98144
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.75 ba · 4,870 sqft · built 1905 |
| Lot Size | 0.238 acres (10,350 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,750,000 (Sep 2020) |
| Tax Bill | $22,534 (2026) |
| Deeds & Mortgages | Sep 2023 Line of Credit Sep 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 955220-0145 |
| Primary APN | 955220-0145 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 4,870 sqft Living Area |
| 1st Floor Area | 1,960 sqft |
| 2nd Floor Area | 1,610 sqft |
| Basement Area | 1,300 sqft |
| Finished Basement | 1,300 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1905 |
|---|---|
| Effective Year Built | Effective 1950 |
| Construction Type | Frame |
| Lot Area | 10,350 sqft (0.238 acres) |
| Porch | Open Porch |
| Porch Area | 310 sqft |
| Deck Area | 400 sqft |
| Heating System | Hot Water |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 955220014505 |
|---|---|
| Street Address | 421 30TH AVE S |
| City | SEATTLE |
| State | WA |
| Zip | 98144-2507 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | NR3 |
| Legal Description | WOODS SUPL BLKS 16-17 BURKES 2ND & VAC ALLEY ADJ |
| Legal Range | 04 |
| Legal Township | 24 |
| Legal Section | 04 |
| Legal Subdivision | WOODS SUPL BLOCKS 16-17 BURKES 2ND |
| Legal Block | 17 |
| Legal Lot Number | 5-6 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 3 |
| Census Block | 3017 |
| Census Tract | 8900 |
Source: King County records, as of July 7, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 421 30TH AVE S, SEATTLE, WA 98144-2507 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Sep 1, 2023 | Deed of Trust, Mortgage · Line of Credit BOEING EMPLOYEES CU |
| Sep 29, 2020 | Warranty Deed, Transfer · Conventional Mortgage UMPQUA BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 29, 2020 · Amount on Record |
| Deed Sale | Sep 29, 2020 · Amount on Record |
| Prior Sale | Sep 15, 2015 · Amount on Record |
| Deed Document Number | 20202313 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 421 30TH AVE S, SEATTLE, WA 98144-2507 |
| Transaction Type | Mortgage |
| Record Updated | Sep 13, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000000559 |
|---|---|
| Date | Sep 1, 2023 |
| Instrument | 20230901000559 |
| Name | BOEING EMPLOYEES CU |
|---|---|
| Type | Credit Union |
| Address | SEATTLE, WA 98124 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 299 Months |
| Due | Aug 16, 2048 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | KING WA |
| Recording Date | Sep 29, 2020 |
| Property Address | 421 30TH AVE S, SEATTLE, WA 98144-2507 |
| Document Number | 0000002313 |
| Map Reference | VOL 2 PG 68 |
| Instrument Date | Sep 23, 2020 |
| Instrument | 20200929002313 |
| Transaction Type | Transfer |
| Record Updated | Jul 30, 2021 |
| Title Company | TICOR TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $33,930.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 421 30TH AVE S, SEATTLE, WA 98144-2507 |
| Document Number | 0000002314 |
|---|---|
| Date | Sep 29, 2020 |
| Instrument | 20200929002314 |
| Name | UMPQUA BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2050 |
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 | $22,534.00 (+16.39%) | ||
| 2025 | $2,137,000 (+8.75%) Land $1,383,000 Building $754,000 | $2,137,000 (+8.75%) Land $1,383,000 Building $754,000 | |
| 2024 | $19,360.00 (+13.52%) | $1,965,000 (+0.98%) Land $1,356,000 Building $609,000 | $1,965,000 (+0.98%) Land $1,356,000 Building $609,000 |
| 2022 | $17,054.00 | $1,946,000 Land $1,169,000 Building $777,000 | $1,946,000 Land $1,169,000 Building $777,000 |
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 · 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 | 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 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures