King County property record for 103 31st Ave S, Seattle, WA 98144
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 1,550 sqft · built 1924 |
| Lot Size | 0.077 acres (3,360 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $565,000 (Nov 2006) |
| Tax Bill | $10,280 (2026) |
| Deeds & Mortgages | Aug 2021 Line of Credit Jan 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 341660-0616 |
| Primary APN | 341660-0616 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,550 sqft Living Area |
| Gross Area | 2,100 sqft |
| 1st Floor Area | 1,050 sqft |
| Basement Area | 1,050 sqft |
| Finished Basement | 500 sqft |
| Unfinished Basement | 550 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1924 |
| Lot Area | 3,360 sqft (0.077 acres) |
| Garage Type | Detached |
| Garage Area | 190 sqft |
| Porch | Open Porch |
| Porch Area | 60 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 341660061605 |
|---|---|
| Street Address | 103 31ST AVE S |
| City | SEATTLE |
| State | WA |
| Zip | 98144-2511 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | NR3 |
| Legal Description | HOLMES H E ADD N 42 FT |
| Legal Range | 04 |
| Legal Township | 24 |
| Legal Section | 04 |
| Legal Subdivision | HOLMES H E ADD |
| Legal Block | 8 |
| Legal Lot Number | 5-6 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 8900 |
103 31st Ave S is owned and occupied by two individuals who acquired it in September 2015.
Source: King County records, as of July 7, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 103 31ST AVE S, SEATTLE, WA 98144-2511 |
| 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.
| Date | Document |
|---|---|
| Aug 5, 2021 | Deed of Trust, Mortgage · Line of Credit FIRST TECHNOLOGY FEDERAL CU |
| Jan 8, 2020 | Deed of Trust, Mortgage · Conventional Mortgage FIRST TECHNOLOGY FEDERAL CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 13, 2006 · Amount on File |
| Deed Sale | Nov 13, 2006 · Amount on File |
| Prior Sale | Apr 26, 2006 · Amount on File |
| Deed Document Number | 20062601 |
| Last Transfer Date | Sep 21, 2015 |
| Transfer Doc | 0000001305 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 103 31ST AVE S, SEATTLE, WA 98144-2511 |
| Transaction Type | Mortgage |
| Record Updated | Jun 9, 2026 |
| Name | Verified Name |
|---|
| Document Number | 0000000128 |
|---|---|
| Date | Aug 5, 2021 |
| Instrument | 20210805000128 |
| Name | FIRST TECHNOLOGY FEDERAL CU |
|---|---|
| Type | Credit Union |
| Address | HILLSBORO, OR 97124 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 299 Months |
| Due | Jul 25, 2046 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KING WA |
| Property Address | 103 31ST AVE S, SEATTLE, WA 98144-2511 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST AMERICAN |
| Name | Verified Name |
|---|
| Document Number | 0000000436 |
|---|---|
| Date | Jan 8, 2020 |
| Instrument | 20200108000436 |
| Name | FIRST TECHNOLOGY FEDERAL CU |
|---|---|
| Type | Credit Union |
| Address | HILLSBORO, OR 97124 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Feb 1, 2035 |
The 2026 property tax bill for 103 31st Ave S was $10,280.
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 | $10,280.00 | ||
| 2025 | $988,000 (+3.67%) Land $478,000 Building $510,000 | $988,000 (+3.67%) Land $478,000 Building $510,000 | |
| 2024 | $9,228.00 | $953,000 Land $469,000 Building $484,000 | $953,000 Land $469,000 Building $484,000 |
| 2022 | $8,297.00 | $959,000 Land $405,000 Building $554,000 | $959,000 Land $405,000 Building $554,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 103 31st Ave S in Zone X, an area of minimal flood risk.
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.
The area around 103 31st Ave S 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 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 |
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