Contra Costa County property record for 4200 Sandmound Blvd, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,177 sqft · built 1998 |
| Lot Size | 0.519 acres (22,625 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $10,257 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 032-300-007-5 |
| Primary APN | 032-300-007-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,177 sqft Living Area |
| 1st Floor Area | 1,856 sqft |
| 2nd Floor Area | 1,321 sqft |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 22,625 sqft (0.519 acres) |
| View / Lot | Waterfront |
| Garage Type | Attached |
| Garage Area | 1,037 sqft |
| Parking Spaces | 4 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4200 SANDMOUND BLVD |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | F1 |
| Legal Description | RECORD OF SURVEY 47 LSM 16 PCL C EX MR |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3034 |
| Census Tract | 301000 |
4200 Sandmound Blvd is held in a trust since January 2010.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4 SHADEWELL CT, DANVILLE, CA 94506-1930 |
| 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 | Jan 13, 2010 |
| Transfer Doc | 0000282995 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4200 Sandmound Blvd was $10,257.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Elementary School District | Oakley Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $814,973 (+2%) Land $218,247 Building $596,726 | |
| 2025 | $10,257.00 | $798,994 Land $213,968 Building $585,026 |
| 2023 | $9,918.00 (+1.08%) | $767,969 Land $205,660 Building $562,309 |
| 2022 | $9,812.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4200 Sandmound Blvd in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 9.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 24 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 24 in force |
| Nearby Flood Claims | 16 (1978–2017) |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| Claims by Event |
|
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 4200 Sandmound Blvd is moderate, ranking above 66% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 66% of the US · above 41% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 | OAKLEY MUTUAL WATER COMPANY private · serves 170 people · EPA ID CA0706004 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2023 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | Arsenic not recorded as resolved · Jan 2026 |
|---|---|
| Treatment and Procedure | Lead service line inventory currently in violation since Oct 2024 |
| Monitoring and Reporting | 1 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 46 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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