Contra Costa County property record for 1772 Sunnyvale Ave, Walnut Creek, CA 94597
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 3 ba · 2,283 sqft · built 1986 |
| Lot Size | 0.184 acres (7,995 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $5,570 (2025) |
| Deeds & Mortgages | Dec 2025 Transfer Dec 2025 Transfer |
| Flood Zone | Zone X (moderate risk) |
| APN | 170-260-043-6 |
| Primary APN | 170-260-043-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 13 Rooms |
| Stories | 1 Story |
| Building Area | 2,283 sqft Living Area |
| 1st Floor Area | 2,283 sqft |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Duplex Single |
| Lot Area | 7,995 sqft (0.184 acres) |
| Garage Type | Attached |
| Garage Area | 430 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1772 SUNNYVALE AVE |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-1810 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R8 |
| Legal Description | PCL MAP 123 PG 39 PCL A |
| Legal Subdivision | PM MS806-85 |
| Legal Tract | 123PM39 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 340001 |
1772 Sunnyvale Ave, a duplex, is owner-occupied and held in a trust since December 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1772 SUNNYVALE AVE, WALNUT CREEK, CA 94597-1810 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
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 |
|---|---|
| Dec 4, 2025 | Affidavit of Death of Joint Tenant, Transfer |
| Dec 4, 2025 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Dec 4, 2025 |
| Transfer Doc | 0000135937 |
| Record Updated | Sep 20, 2026 |
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 4, 2025 |
| Property Address | 1772 SUNNYVALE AVE, WALNUT CREEK, CA 94597-1810 |
| Document Number | 0000135936 |
| Map Reference | MB 123 PG 39 |
| Instrument Date | Dec 4, 2025 |
| Instrument | 2025- 135936 |
| Transaction Type | Transfer |
| Record Updated | Dec 18, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1772 SUNNYVALE AVE, WALNUT CREEK, CA 94597-1810 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 4, 2025 |
| Property Address | 1772 SUNNYVALE AVE, WALNUT CREEK, CA 94597-1810 |
| Document Number | 0000135937 |
| Map Reference | MB 123 PG 39 |
| Instrument Date | Dec 4, 2025 |
| Instrument | 2025- 135937 |
| Transaction Type | Transfer |
| Record Updated | Dec 18, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1772 SUNNYVALE AVE, WALNUT CREEK, CA 94597-1810 |
The 2025 property tax bill for 1772 Sunnyvale Ave was $5,570.
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 | $391,952 (+2%) Land $135,866 Building $256,086 | |
| 2025 | $5,570.00 Homeowner's exemption | $384,267 Land $133,202 Building $251,065 |
| 2023 | $5,409.00 (-0.51%) Homeowner's exemption | $369,348 Land $128,031 Building $241,317 |
| 2022 | $5,437.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1772 Sunnyvale Ave in Zone X, an area of moderate flood risk, within 100 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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 2 (1998–2012) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Nov 2012 · rainfall accumulation |
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 1772 Sunnyvale Ave 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 99.1% of the US · lower than 99.2% 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 | 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 486 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Sonic Telecom.
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