Contra Costa County property record for 331 Brennan Ct, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,069 sqft · built 1952 |
| Lot Size | 0.113 acres (4,928 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $320,000 (Jun 2004) |
| Tax Bill | $5,577 (2025) |
| Deeds & Mortgages | Feb 2022 Mortgage Dec 2017 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-245-017-6 |
| Primary APN | 068-245-017-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,069 sqft Living Area |
| 1st Floor Area | 1,069 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1952 |
| Lot Area | 4,928 sqft (0.113 acres) |
| Garage Type | Attached |
| Garage Area | 298 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 331 BRENNAN CT |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-5008 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | GARROW SUBN #1 LOT 16 |
| Legal Subdivision | GARROW SUB |
| Legal Lot Number | 16 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1021 |
| Census Tract | 308001 |
331 Brennan Ct is owned and occupied by two individuals who bought it in June 2004.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 331 BRENNAN CT, ANTIOCH, CA 94509-5008 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 |
|---|---|
| Feb 15, 2022 | Deed of Trust, Mortgage · Conventional Mortgage NATIONWIDE MORTGAGE BANKERS INC |
| Dec 26, 2017 | Deed of Trust, Mortgage · Conventional Mortgage MISCELLANEOUS GOVT AGCY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 17, 2004 · Amount on File |
| Deed Sale | Jun 17, 2004 · Amount on File |
| Deed Document Number | 2004231196 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 331 BRENNAN CT, ANTIOCH, CA 94509-5008 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE INSURANCE CO |
| Name | Verified Name |
|---|---|
| Address | 331 BRENNAN CT, ANTIOCH, CA 94509-5008 |
| Document Number | 0000028964 |
|---|---|
| Date | Feb 15, 2022 |
| Instrument | 2022-028964 |
| Name | NATIONWIDE MORTGAGE BANKERS INC |
|---|---|
| Type | Mortgage Company |
| Address | MELVILLE, NY 11747 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2052 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 331 BRENNAN CT, ANTIOCH, CA 94509-5008 |
| Document Number | 0000004812 |
| Instrument Date | Dec 26, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Jan 17, 2018 |
| Title Company | UTOPIAN GROUP |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 331 BRENNAN CT ANTIOCH CA 945095008, ANTIOCH, CA 94509-5008 |
| Document Number | 0000004812 |
|---|---|
| Date | Jan 12, 2018 |
| Instrument | 4812 |
| Name | MISCELLANEOUS GOVT AGCY |
|---|---|
| Address | RIVERSIDE, CA 92517 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 331 Brennan Ct was $5,577 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $464,053 (+2%) Land $261,032 Building $203,021 | |
| 2025 | $5,577.00 Homeowner's exemption | $454,955 Land $255,914 Building $199,041 |
| 2023 | $5,302.00 (+1.63%) Homeowner's exemption | $437,291 Land $245,978 Building $191,313 |
| 2022 | $5,217.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 331 Brennan Ct in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1998.
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 | 1 in force |
| Nearby Flood Claims | 3 (1998–2004) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Nov 2004 · rainfall accumulation |
| 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.
The area around 331 Brennan Ct has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2022–2024) 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 597 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: Verizon.
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