Contra Costa County property record for 3229 Stone Valley Rd, Alamo, CA 94507
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,190 sqft · built 1974 |
| Lot Size | 0.386 acres (16,800 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $370,000 (Feb 1996) |
| Tax Bill | $7,412 (2025) |
| Deeds & Mortgages | Nov 2025 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 194-133-017-5 |
| Primary APN | 194-133-017-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,190 sqft Living Area |
| Gross Area | 2,838 sqft |
| 1st Floor Area | 2,190 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 16,800 sqft (0.386 acres) |
| Garage Type | Attached |
| Garage Area | 648 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3229 STONE VALLEY RD |
|---|---|
| City | ALAMO |
| State | CA |
| Zip | 94507-2838 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15 |
| Legal Description | T04184 L0038 B |
| Legal Subdivision | WHITEGATE SUBDIVISION 4184 |
| Legal Tract | 04184 |
| Legal Lot Number | 38 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 346205 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 3229 STONE VALLEY RD, ALAMO, CA 94507-2838 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Feb 8, 1996 · Amount on Record |
| Deed Sale | Feb 8, 1996 · Amount on Record |
| Deed Document Number | 199623041 |
| Last Transfer Date | Oct 30, 2025 |
| Transfer Doc | 0000124764 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 5, 2025 |
| Property Address | 3229 STONE VALLEY RD, ALAMO, CA 94507-2838 |
| Document Number | 0000124764 |
| Map Reference | MB 147 PG 13 |
| Instrument Date | Oct 30, 2025 |
| Instrument | 2025- 124764 |
| Transaction Type | Transfer |
| Record Updated | Nov 14, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3229 STONE VALLEY RD, ALAMO, CA 94507-2838 |
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 | $626,933 (+2%) Land $440,557 Building $186,376 | |
| 2025 | $7,412.00 (+1.91%) Homeowner's exemption | $614,641 (+4.04%) Land $431,919 Building $182,722 |
| 2023 | $7,273.00 (+0.76%) Homeowner's exemption | $590,776 Land $415,148 Building $175,628 |
| 2022 | $7,218.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 6 in force |
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: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 57% of the US · lower than 66% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 359 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Verizon.
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