Contra Costa County property record for 70 Adak Ct, Walnut Creek, CA 94597
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,064 sqft · built 1950 |
| Lot Size | 0.184 acres (8,034 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $2,372 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 171-250-025-3 |
| Primary APN | 171-250-025-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,064 sqft Living Area |
| 1st Floor Area | 2,064 sqft |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 8,034 sqft (0.184 acres) |
| Lot Dimensions | 103 ft deep x 78 ft wide |
| Garage Type | Attached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 70 ADAK CT |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-2424 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | ADAK HOMESITES LOT 7 |
| Legal Subdivision | ADAK HOMESITES |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 340003 |
70 Adak Ct is owner-occupied and held in a trust since April 2011.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 70 ADAK CT, WALNUT CREEK, CA 94597-2424 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 | Name on Deed |
|---|---|
| Last Transfer Date | Apr 9, 2011 |
| Transfer Doc | 0000080587 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 70 Adak Ct was $2,372 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $144,453 (+2%) Land $32,479 Building $111,974 | |
| 2025 | $2,372.00 Homeowner's exemption | $141,622 Land $31,843 Building $109,779 |
| 2023 | $2,257.00 (+0.94%) Homeowner's exemption | $136,124 Land $30,607 Building $105,517 |
| 2022 | $2,236.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 70 Adak Ct in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 70 Adak Ct is low, with less than 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 99.8% of the US · lower than 99.8% of California |
|---|---|
| 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) 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 490 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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