Contra Costa County property record for 161 Bolla Ave, Alamo, CA 94507
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,462 sqft · built 1956 |
| Lot Size | 0.496 acres (21,600 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $1,300,000 (Apr 2025) |
| Tax Bill | $3,197 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 193-112-008-1 |
| Primary APN | 193-112-008-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,462 sqft Living Area |
| 1st Floor Area | 2,462 sqft |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1956 |
| Lot Area | 21,600 sqft (0.496 acres) |
| Garage Type | Attached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 161 BOLLA AVE |
|---|---|
| City | ALAMO |
| State | CA |
| Zip | 94507-1637 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20 |
| Legal Description | BOLLA ACRES #3 LOT 36 |
| Legal Subdivision | BOLLA ACRES 03 |
| Legal Lot Number | 36 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4006 |
| Census Tract | 346102 |
161 Bolla Ave is owned by a company that bought it in April 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 161 BOLLA AVE, ALAMO, CA 94507-1637 |
| Owner Type | Company |
| Vesting | Life Tenant |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Apr 29, 2025 · Amount on File |
| Deed Sale | Apr 29, 2025 · Amount on File |
| Deed Document Number | 202541616 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 161 Bolla Ave was $3,197.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,937,000 (+877.12%) Land $1,479,000 Building $458,000 | |
| 2025 | $3,197.00 | $198,236 Land $55,249 Building $142,987 |
| 2023 | $3,067.00 (+0.72%) | $190,540 Land $53,104 Building $137,436 |
| 2022 | $3,045.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 161 Bolla Ave in Zone X, an area of moderate flood risk, though there have been 3 flood claims nearby since 1995.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 3 (1995–2002) |
| Most Recent Claim | Dec 2002 · river or lake flooding |
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 161 Bolla Ave is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 284 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 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL | 100 / 20 |
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