Contra Costa County property record for 1330 Castle Rock Rd, Walnut Creek, CA 94598
| Property Type | Rural Home |
|---|---|
| Details | 1,626 sqft · built 1963 |
| Lot Size | 3.8 acres (165,528 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,034,500 (Dec 2020) |
| Tax Bill | $20,791 (2025) |
| Deeds & Mortgages | May 2026 Mortgage Dec 2022 Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 138-260-007-8 |
| Primary APN | 138-260-007-8 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 1,626 sqft Living Area |
| 1st Floor Area | 1,626 sqft |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1980 |
| Lot Area | 165,528 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1330 CASTLE ROCK RD |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94598-5124 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Local Zoning Code | A2 |
| Legal Description | POR RO SAN MIGUEL |
| Legal Subdivision | RANCHO SAN MIGUEL |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 338302 |
1330 Castle Rock Rd, a rural home, is owned and occupied by two individuals who acquired it in December 2022.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
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 |
|---|---|
| May 28, 2026 | Deed of Trust, Mortgage · Conventional Mortgage TSB BANK |
| Dec 8, 2022 | Intrafamily Transfer, Transfer · Commercial Mortgage CURTIS DEWEESE |
| Dec 18, 2020 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Dec 15, 2020 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Dec 15, 2020 | Grant Deed, Transfer · Conventional Mortgage HEFFERNAN THOMAS S TRUST (RT) |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 15, 2020 · Amount on File |
| Deed Sale | Dec 15, 2020 · Amount on File |
| Deed Document Number | 2020314548 |
| Last Transfer Date | Dec 5, 2022 |
| Transfer Doc | 0000181957 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 28, 2026 |
| Property Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000055408 |
| Instrument Date | May 22, 2026 |
| Instrument | 202655408 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Limited Liability Partnership, 266 |
| Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000055408, |
|---|---|
| Date | May 28, 2026 |
| Instrument | 202655408 |
| Name | TSB BANK |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jun 1, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 6.23% |
| Initial Type | Fixed Rate |
| Max Rate | -1% |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 8, 2022 |
| Property Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000181957 |
| Instrument Date | Dec 5, 2022 |
| Instrument | 2022-181957 |
| Transaction Type | Transfer |
| Record Updated | Dec 16, 2022 |
| Title Company | CALIFORNIA COAST TITLE COMPANY, CALIFORNIA BEST TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000181958 |
|---|---|
| Date | Dec 8, 2022 |
| Instrument | 2022-181958 |
| Name | CURTIS DEWEESE |
|---|---|
| Type | Private Party |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 18, 2020 |
| Property Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000319350 |
| Instrument Date | Dec 17, 2020 |
| Instrument | 319350 |
| Transaction Type | Transfer |
| Record Updated | Dec 30, 2020 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1330 CASTLE ROCK RD WALNUT CREEK CA 945985124, WALNUT CREEK, CA 94598-5124 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 15, 2020 |
| Property Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000314549 |
| Instrument Date | Dec 11, 2020 |
| Instrument | 314549 |
| Transaction Type | Transfer |
| Record Updated | Dec 29, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1330 CASTLE ROCK RD WALNUT CREEK CA 945985124, WALNUT CREEK, CA 94598-5124 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 15, 2020 |
| Property Address | 1330 CASTLE ROCK RD, WALNUT CREEK, CA 94598-5124 |
| Document Number | 0000314548 |
| Instrument Date | Dec 11, 2020 |
| Instrument | 314548 |
| Transaction Type | Transfer |
| Record Updated | Dec 29, 2020 |
| Title Company | OLD REPUBLIC TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,138.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 1330 CASTLE ROCK RD WALNUT CREEK CA 945985124, WALNUT CREEK, CA 94598-5124 |
| Document Number | 314550 |
|---|---|
| Date | Dec 15, 2020 |
| Instrument | 314550 |
| Name | HEFFERNAN THOMAS S TRUST (RT) |
|---|---|
| Address | 4000 EXECUTIVE PKWY # 160, SAN RAMON, CA 94583-4314 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 36 Months |
| Due | Dec 14, 2023 |
The 2025 property tax bill for 1330 Castle Rock Rd was $20,791.
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 | $1,907,781 (+2%) Land $1,162,012 Building $745,769 | |
| 2025 | $20,791.00 | $1,870,375 Land $1,139,228 Building $731,147 |
| 2023 | $20,104.00 (-0.1%) | $1,803,980 Land $1,094,992 Building $708,988 |
| 2022 | $20,124.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1330 Castle Rock Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| 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 1330 Castle Rock Rd is high, ranking above 85% of the US, with a 0.8% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 85% of the US · above 65% of California |
|---|---|
| Wildfire Likelihood | 0.8% 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 34 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 |
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