Contra Costa County property record for 33 Demartini Ct, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,373 sqft · built 1980 |
| Lot Size | 0.207 acres (9,000 sqft) |
| Owner | Company Name on File |
| Last Sale | $46,090 (Feb 1995) |
| Tax Bill | $3,422 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 035-383-013-6 |
| Primary APN | 035-383-013-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,373 sqft Living Area |
| 1st Floor Area | 1,373 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1981 |
| Lot Area | 9,000 sqft (0.207 acres) |
| Garage Type | Attached |
| Garage Area | 393 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 33 DEMARTINI CT |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-2302 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T05011 L0035 B EX MR |
| Legal Tract | 05011 |
| Legal Lot Number | 35 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 302014 |
33 Demartini Ct is owned by a company that bought it in February 1995.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 1193, BRENTWOOD, CA 94513-3193 |
| Owner Type | Company |
| Vesting | Partnership |
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 | Feb 28, 1995 · Amount on File |
| Deed Sale | Feb 28, 1995 · Amount on File |
| Prior Sale | Oct 21, 1994 · Amount on File |
| Deed Document Number | 199532245 |
| Prior Transfer Date | Feb 17, 1995 |
| Prior Transfer Doc | 0000032245 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 33 Demartini Ct was $3,422.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Oakley City |
| 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 | $221,034 (+2%) Land $70,796 Building $150,238 | |
| 2025 | $3,422.00 | $216,701 Land $69,408 Building $147,293 |
| 2023 | $3,331.00 (+0.7%) | $208,288 Land $66,714 Building $141,574 |
| 2022 | $3,308.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 33 Demartini Ct in Zone X, an area of minimal flood risk.
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 |
| Nearby Flood Policies | 2 in force |
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 33 Demartini Ct 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 95% of the US · lower than 97% 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 | DIABLO WATER DISTRICT serves 47,158 people · EPA ID CA0710007 |
|---|---|
| Water Source | Purchased surface water from RANDALL-BOLD WATER TREATMENT PLANT |
| Last State Inspection | Jan 2024 |
| Also Mapped Here | CONTRA COSTA WATER DISTRICT |
| Lead | 2 ppb (2020–2022) 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 850 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 |
| AT&T DSL | 100 / 20 |
May also be available: Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures