Contra Costa County property record for 4818 Sandmound Blvd, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,974 sqft · built 1956 |
| Lot Size | 0.21 acres (9,150 sqft) |
| Owner | Trust Name on File |
| Last Sale | $440,000 (Sep 2003) |
| Tax Bill | $8,350 (2025) |
| Deeds & Mortgages | Nov 2018 Transfer |
| Flood Zone | Zone AE (high risk) |
| APN | 032-230-009-6 |
| Primary APN | 032-230-009-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,974 sqft Living Area |
| 1st Floor Area | 1,272 sqft |
| 2nd Floor Area | 702 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Bungalow |
| Exterior Material | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 9,150 sqft (0.21 acres) |
| Garage Type | Attached |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Deck Area | Deck Area |
| Cooling System | Wall Unit |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Septic |
| Street Address | 4818 SANDMOUND BLVD |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-5053 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | F1 |
| Legal Description | SANDMOUND TRACT LOT 51 LESS MR |
| Legal Subdivision | SANDMOUND TR |
| Legal Lot Number | 51 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4003 |
| Census Tract | 301000 |
4818 Sandmound Blvd is held in a trust since September 2018.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 227 LISBON ST, SAN FRANCISCO, CA 94112-2018 |
| 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 Sale | Sep 15, 2003 · Amount on File |
| Deed Sale | Sep 15, 2003 · Amount on File |
| Deed Document Number | 2003457920 |
| Last Transfer Date | Sep 5, 2018 |
| Transfer Doc | 0000178715 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 1, 2018 |
| Property Address | 4818 SANDMOUND BLVD, OAKLEY, CA 94561-5053 |
| Document Number | 0000178715 |
| Instrument Date | Sep 5, 2018 |
| Instrument | 178715 |
| Transaction Type | Transfer |
| Record Updated | Nov 12, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 4818 SANDMOUND BLVD OAKLEY CA 945615053, OAKLEY, CA 94561-5053 |
The 2025 property tax bill for 4818 Sandmound Blvd was $8,350.
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 | $638,081 (+2%) Land $159,515 Building $478,566 | |
| 2025 | $8,350.00 | $625,571 Land $156,388 Building $469,183 |
| 2023 | $8,070.00 (+1.1%) | $601,281 Land $150,316 Building $450,965 |
| 2022 | $7,982.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4818 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 49 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 149 units insured incl. 100 condo units |
| Nearby Flood Claims | 2 (2017–2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 4818 Sandmound Blvd is high, ranking above 72% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 72% of the US · above 48% of California |
|---|---|
| Wildfire Likelihood | 0.3% 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 |
| Also Mapped Here | DELTA MUTUAL WATER COMPANY |
| 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 77 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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