Contra Costa County property record for 9997 Alcosta Blvd, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,448 sqft · built 1971 |
| Lot Size | 0.184 acres (8,000 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,275,000 (Sep 2022) |
| Tax Bill | $15,209 (2025) |
| Deeds & Mortgages | Sep 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 212-132-010-1 |
| Primary APN | 212-132-010-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,448 sqft Living Area |
| Gross Area | 1,899 sqft |
| 1st Floor Area | 1,448 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1971 |
|---|---|
| Effective Year Built | Effective 1985 |
| Exterior Material | Block |
| Construction Type | Frame |
| Lot Area | 8,000 sqft (0.184 acres) |
| Garage Type | Attached |
| Garage Area | 451 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 9997 ALCOSTA BLVD |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-3057 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 3840 LOT 107 EX MR |
| Legal Subdivision | SUBDIVISION 3840 |
| Legal Tract | 3840 |
| Legal Lot Number | 107 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 345103 |
9997 Alcosta Blvd is owned and occupied by an individual who bought it in September 2022.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9997 ALCOSTA BLVD, SAN RAMON, CA 94583-3057 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | Sep 9, 2022 · Amount on File |
| Deed Sale | Sep 9, 2022 · Amount on File |
| Deed Document Number | 2022137539 |
| Prior Transfer Date | May 30, 2006 |
| Prior Transfer Doc | 0000175349 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 9, 2022 |
| Property Address | 9997 ALCOSTA BLVD, SAN RAMON, CA 94583-3057 |
| Document Number | 0000137539 |
| Map Reference | MB 125 PG 42-47 |
| Instrument Date | Aug 25, 2022 |
| Instrument | 2022-137539 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 9997 ALCOSTA BLVD, SAN RAMON, CA 94583-3057 |
| Document Number | 0000137540 |
|---|---|
| Date | Sep 9, 2022 |
| Instrument | 2022-137540 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2052 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.87% |
| Type Change Date | Oct 1, 2029 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 8.87% |
| Index | Other |
| Max Rate | 8.87% |
The 2025 property tax bill for 9997 Alcosta Blvd was $15,209.
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 | $1,353,040 (+2%) Land $1,061,208 Building $291,832 | |
| 2025 | $15,209.00 | $1,326,510 Land $1,040,400 Building $286,110 |
| 2023 | $14,678.00 (+354.85%) | $1,275,000 Land $1,000,000 Building $275,000 |
| 2022 | $3,227.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 9997 Alcosta Blvd in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1982.
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 | 4 in force |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jan 1982 · Severe Storms, Flood, Mudslides & High Tide |
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 9997 Alcosta Blvd is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | 0.05% 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 182 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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