Contra Costa County property record for 172 Sonora Ave, Danville, CA 94526
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,705 sqft · built 1950 |
| Lot Size | 0.344 acres (15,000 sqft) |
| Owner | Trust Name on File |
| Last Sale | $995,000 (Mar 2010) |
| Tax Bill | $17,839 (2025) |
| Deeds & Mortgages | May 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 208-033-016-6 |
| Primary APN | 208-033-016-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,705 sqft Living Area |
| 1st Floor Area | 2,705 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 15,000 sqft (0.344 acres) |
| Lot Dimensions | 150 ft deep x 100 ft wide |
| Garage Type | Attached |
| Garage Area | 525 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 172 SONORA AVE |
|---|---|
| City | DANVILLE |
| State | CA |
| Zip | 94526-3834 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R-20 |
| Legal Description | DANVILLE ESTATES LOT 44 |
| Legal Subdivision | DANVILLE ESTATES |
| Legal Lot Number | 44 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 345203 |
172 Sonora Ave is held in a trust since May 2021.
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 172 SONORA AVE, DANVILLE, CA 94526-3834 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 17, 2010 · Amount on File |
| Deed Sale | Mar 17, 2010 · Amount on File |
| Prior Sale | Nov 22, 2002 · Amount on File |
| Deed Document Number | 201052578 |
| Last Transfer Date | May 5, 2021 |
| Transfer Doc | 0000144960 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 14, 2021 |
| Property Address | 172 SONORA AVE, DANVILLE, CA 94526-3834 |
| Document Number | 0000144960 |
| Map Reference | MB 31 PG 22 |
| Instrument Date | May 5, 2021 |
| Instrument | 2021-144960 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 172 SONORA AVE, DANVILLE, CA 94526-3834 |
The 2025 property tax bill for 172 Sonora Ave was $17,839.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Danville Town |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,566,706 (+2%) Land $1,046,724 Building $519,982 | |
| 2025 | $17,839.00 | $1,535,987 Land $1,026,200 Building $509,787 |
| 2023 | $17,069.00 (+0.74%) | $1,476,345 Land $986,352 Building $489,993 |
| 2022 | $16,944.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 172 Sonora Ave in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1980.
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 Claims | 3 (1980–1986) |
| Most Recent Claim | Feb 1986 · Severe Storms & 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 172 Sonora Ave is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 64% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Direct burnable vegetation |
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 308 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 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
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