Contra Costa County property record for 4848 Venner Rd, Martinez, CA 94553 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,145 sqft · built 1960 |
| Lot Size | 1.55 acres (67,518 sqft) |
| Owner | Company Name on File |
| Tax Bill | $2,613 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 162-132-002-5 |
| Primary APN | 162-132-002-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,145 sqft Living Area |
| 1st Floor Area | 2,145 sqft |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 67,518 sqft |
| Garage Type | Attached |
| Garage Area | 462 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4848 VENNER RD |
|---|---|
| City | MARTINEZ |
| State | CA |
| Zip | 94553-4547 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MUIR OAKS POR LOTS 27 & 28 |
| Legal Subdivision | MUIR OAKS |
| Legal Lot Number | 27,28 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 321101 |
Source: Contra Costa County records · APN 162-132-002-5
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 | Company Name on File |
|---|---|
| Mailing Address | 4848 VENNER RD, MARTINEZ, CA 94553-4547 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jan 28, 1999 |
| Transfer Doc | 0000034009 |
| 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 | Martinez City |
| Unified School District | Martinez 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 | $148,162 (+2%) Land $43,670 Building $104,492 | |
| 2025 | $2,613.00 (+6.48%) Homeowner's exemption | $145,258 (+4.04%) Land $42,814 Building $102,444 |
| 2023 | $2,454.00 (+1.45%) Homeowner's exemption | $139,619 Land $41,152 Building $98,467 |
| 2022 | $2,419.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133211014, 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 | 1 (1981) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Nov 1981, rainfall accumulation |
| 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 256 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| AT&T | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Verizon, Unwired, T-Mobile USA, AT&T, Radiate Holdings. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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