Contra Costa County property record for 237 Hillside Rd, Antioch, CA 94509 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 2,577 sqft · built 1977 |
| Lot Size | 0.179 acres (7,788 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,596 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 068-201-056-6 |
| Primary APN | 068-201-056-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,577 sqft Living Area |
| Gross Area | 3,154 sqft |
| 1st Floor Area | 1,737 sqft |
| 2nd Floor Area | 840 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1978 |
| Lot Area | 7,788 sqft (0.179 acres) |
| Garage Type | Attached |
| Garage Area | 577 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 237 HILLSIDE RD |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-4931 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PARCEL MAP 44 PG 31 PCL B |
| Legal Tract | 44PM31 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1024 |
| Census Tract | 308001 |
Source: Contra Costa County records · APN 068-201-056-6
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 237 HILLSIDE RD, ANTIOCH, CA 94509-4931 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $374,097 (+2%) Land $68,443 Building $305,654 | |
| 2025 | $4,596.00 (+5.39%) Homeowner's exemption | $366,762 (+4.04%) Land $67,101 Building $299,661 |
| 2023 | $4,361.00 (+1.58%) Homeowner's exemption | $352,523 Land $64,497 Building $288,026 |
| 2022 | $4,293.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133080011, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| 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 Storm |
|
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 489 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Unwired | Fixed Wireless | 300 / 25 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon. Availability varies by address; speeds are provider-advertised maximums, not measured.
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