King County property record for 8564 129th Ave SE, Newcastle, WA 98056
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,860 sqft · built 1989 |
| Lot Size | 0.322 acres (14,020 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $464,000 (Oct 2013) |
| Tax Bill | $9,831 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 638890-1370 |
| Primary APN | 638890-1370 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,860 sqft Living Area |
| 1st Floor Area | 1,860 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Lot Area | 14,020 sqft (0.322 acres) |
| Deck Area | 140 sqft |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Electric |
| Sewer | Municipal |
| Water Source | Commercial |
| Account Number | 638890137000 |
|---|---|
| Street Address | 8564 129TH AVE SE |
| City | NEWCASTLE |
| State | WA |
| Zip | 98056-9100 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-6 |
| Legal Description | OLYMPUS |
| Legal Range | 05 |
| Legal Township | 24 |
| Legal Section | 33 |
| Legal Subdivision | OLYMPUS |
| Legal Lot Number | 137 |
| Jurisdiction | KING WA |
| Township / Civil Division | SEATTLE EAST |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 25001 |
8564 129th Ave SE is owned and occupied by two individuals who bought it in October 2013.
Source: King County records, as of July 7, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 8564 129TH AVE SE, NEWCASTLE, WA 98056-9100 |
| 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 | Oct 15, 2013 · Amount on File |
| Deed Sale | Oct 15, 2013 · Amount on File |
| Prior Sale | Apr 30, 2001 · Amount on File |
| Deed Document Number | 2013755 |
| Prior Transfer Date | May 24, 2005 |
| Prior Transfer Doc | 0000001332 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 8564 129th Ave SE was $9,831.
Source: King County assessment roll, as of July 7, 2026
| Type | Name |
|---|---|
| State | Washington |
| County | King County |
| Municipality | Newcastle City |
| Unified School District | Issaquah School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $9,831.00 | ||
| 2025 | $1,086,000 (+6.68%) Land $746,000 Building $340,000 | $1,086,000 (+6.68%) Land $746,000 Building $340,000 | |
| 2024 | $9,181.00 | $1,018,000 Land $696,000 Building $322,000 | $1,018,000 Land $696,000 Building $322,000 |
| 2022 | $8,598.00 | $1,032,000 Land $714,000 Building $318,000 | $1,032,000 Land $714,000 Building $318,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 8564 129th Ave SE 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.
Wildfire risk around 8564 129th Ave SE is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 84% of Washington |
|---|---|
| Wildfire Likelihood | 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 | COAL CREEK UTILITY DISTRICT serves 15,989 people · EPA ID WA5341750 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jun 2022 |
| 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 314 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| CenturyLink DSL · Fiber in parts of the area | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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