Contra Costa County property record for 124 Cobblestone Ln, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,412 sqft · built 1984 |
| Lot Size | 0.256 acres (11,160 sqft) |
| Owner | Company Name on Record |
| Last Sale | $784,000 (May 2002) |
| Tax Bill | $13,611 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 209-580-006-2 |
| Primary APN | 209-580-006-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 2,412 sqft Living Area |
| 1st Floor Area | 1,189 sqft |
| 2nd Floor Area | 1,223 sqft |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 11,160 sqft (0.256 acres) |
| Garage Type | Attached |
| Garage Area | 356 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 124 COBBLESTONE LN |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-1755 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T05379 L0015 B |
| Legal Tract | 05379 |
| Legal Lot Number | 15 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 345206 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 124 COBBLESTONE LN, SAN RAMON, CA 94583-1755 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 22, 2002 · Amount on Record |
| Deed Sale | May 22, 2002 · Amount on Record |
| Deed Document Number | 2002181820 |
| Last Transfer Date | Nov 1, 2013 |
| Transfer Doc | 0000280795 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | San Ramon City |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,181,349 (+2%) Land $675,058 Building $506,291 | |
| 2025 | $13,611.00 (+3.75%) | $1,158,186 (+4.04%) Land $661,822 Building $496,364 |
| 2023 | $13,119.00 (+0.74%) | $1,113,215 Land $636,124 Building $477,091 |
| 2022 | $13,022.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 84% of the US · above 64% of California |
|---|---|
| Wildfire Likelihood | 0.8% annual chance |
| Exposure | Indirect within 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 160 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 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
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