Contra Costa County property record for 139 Marys Ave, Bay Point, CA 94565 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 786 sqft · built 1943 |
| Lot Size | 0.2 acres (8,700 sqft) |
| Owner | Individual Name on File |
| Last Sale | $210,000 (Aug 2015) |
| Tax Bill | $3,558 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 093-034-040-1 |
| Primary APN | 093-034-040-1 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 786 sqft Living Area |
| 1st Floor Area | 786 sqft |
| Year Built | Built 1943 |
|---|---|
| Effective Year Built | Effective 1950 |
| Lot Area | 8,700 sqft (0.2 acres) |
| Garage Type | Attached |
| Street Address | 139 MARYS AVE |
|---|---|
| City | BAY POINT |
| State | CA |
| Zip | 94565-3131 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | ENES AMBROSE #3 POR LOT 56 |
| Legal Subdivision | ENES AMBROS 03 |
| Legal Lot Number | 56 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 314105 |
Source: Contra Costa County records · APN 093-034-040-1
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 | Individual Name on File |
|---|---|
| Mailing Address | 139 MARYS AVE, BAY POINT, CA 94565-3131 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 14, 2015 · Amount on Record |
| Deed Sale | Aug 14, 2015 · Amount on Record |
| Deed Document Number | 2015169337 |
| Prior Transfer Date | Aug 13, 2001 |
| Prior Transfer Doc | 0000249318 |
| 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 |
| Unified School District | Mount Diablo 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 | $253,561 (+2%) Land $163,005 Building $90,556 | |
| 2025 | $3,558.00 (+5.67%) Homeowner's exemption | $248,590 (+4.04%) Land $159,809 Building $88,781 |
| 2023 | $3,367.00 (+0.72%) Homeowner's exemption | $238,939 Land $153,604 Building $85,335 |
| 2022 | $3,343.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 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 |
| 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; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 610 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 2,000 |
May also be available at this address: AT&T, Verizon, Unwired. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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