Contra Costa County property record for 725 Castle Rock Rd, Walnut Creek, CA 94598
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 3,661 sqft · built 1985 |
| Lot Size | 1.8 acres (78,843 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,750,000 (Feb 2007) |
| Tax Bill | $26,688 (2025) |
| Deeds & Mortgages | Mar 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 139-290-006-2 |
| Primary APN | 139-290-006-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 1 Story |
| Building Area | 3,661 sqft Living Area |
| Gross Area | 4,391 sqft |
| 1st Floor Area | 3,063 sqft |
| Basement Area | 598 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Roof Material | Composition Shingle |
| Lot Area | 78,843 sqft |
| Garage Type | Attached |
| Garage Area | 730 sqft |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 725 CASTLE ROCK RD |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-5111 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R65 |
| Legal Description | PCL MAP 95 PG 7 PCL B |
| Legal Subdivision | PM 95 7 |
| Legal Tract | 95PM7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2008 |
| Census Tract | 338302 |
725 Castle Rock Rd is owned by a company that acquired it in June 2016.
Source: Contra Costa County records, as of September 18, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 725 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5111 |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 | Feb 16, 2007 · Amount on File |
| Deed Sale | Feb 16, 2007 · Amount on File |
| Prior Sale | Aug 5, 2004 · Amount on File |
| Deed Document Number | 200747788 |
| Last Transfer Date | Jun 10, 2016 |
| Transfer Doc | 0000029814 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Mar 26, 2026 |
| Property Address | 725 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5111 |
| Document Number | 0000029814 |
| Map Reference | MB 95 PG 7 |
| Instrument Date | Jun 10, 2016 |
| Instrument | 2026- 029814 |
| Transaction Type | Transfer |
| Record Updated | Apr 3, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 725 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5111 |
The 2025 property tax bill for 725 Castle Rock Rd was $26,688.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,391,513 (+2%) Land $970,270 Building $1,421,243 | |
| 2025 | $26,688.00 | $2,344,622 Land $951,246 Building $1,393,376 |
| 2023 | $25,683.00 (+0.88%) Homeowner's exemption | $2,253,579 Land $914,309 Building $1,339,270 |
| 2022 | $25,459.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 725 Castle Rock Rd in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1998.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 2 (1998–2016) |
| Most Recent Claim | Mar 2016 · 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.
Wildfire risk around 725 Castle Rock Rd is high, ranking above 82% of the US, with a 0.5% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 82% of the US · above 61% of California |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Direct burnable vegetation |
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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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.
Source: FCC Broadband Data Collection, based on 104 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL | 100 / 20 |
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