Contra Costa County property record for 4864 Cornflower St, San Ramon, CA 94582
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,545 sqft · built 2015 |
| Lot Size | 0.079 acres (3,454 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,340,000 (Nov 2020) |
| Tax Bill | $18,877 (2025) |
| Deeds & Mortgages | May 2017 Line of Credit Mar 2022 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 222-540-011-4 |
| Primary APN | 222-540-011-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,545 sqft Living Area |
| 1st Floor Area | 1,080 sqft |
| 2nd Floor Area | 1,465 sqft |
| Year Built | Built 2015 |
|---|---|
| Effective Year Built | Effective 2015 |
| Architectural Style | Cluster |
| Lot Area | 3,454 sqft (0.079 acres) |
| Garage Type | Attached |
| Garage Area | 425 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 4864 CORNFLOWER ST |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94582-5406 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T9165 L11 |
| Legal Subdivision | SUBDIVISION 9165 |
| Legal Tract | 9165 |
| Legal Lot Number | 11 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 3 |
| Census Block | 3024 |
| Census Tract | 355115 |
4864 Cornflower St is owned and occupied by two individuals who bought it in November 2020.
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| May 16, 2017 | Deed of Trust, Mortgage · Line of Credit PENTAGON FCU |
| Mar 2, 2022 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Nov 30, 2020 | Grant Deed, Transfer · Conventional Mortgage LOANDEPOT.COM LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 30, 2020 · Amount on File |
| Deed Sale | Nov 30, 2020 · Amount on File |
| Prior Sale | Nov 19, 2015 · Amount on File |
| Deed Document Number | 2020290189 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | AMERICAN TITLE INC |
| Name | Verified Name |
|---|
| Document Number | 0000085009 |
|---|---|
| Date | May 16, 2017 |
| Instrument | 2017-085009 |
| Name | PENTAGON FCU |
|---|---|
| Type | Credit Union |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 180 Months |
| Due | May 12, 2032 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Document Number | 0000037832 |
|---|---|
| Date | Mar 2, 2022 |
| Instrument | 2022-037832 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Nov 30, 2020 |
| Property Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Document Number | 0000290189 |
| Map Reference | MB 512 PG 18-32 |
| Instrument Date | Nov 18, 2020 |
| Instrument | 2020-290189 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| 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 |
|---|---|
| Relationship | Community Property |
| Address | 4864 CORNFLOWER ST, SAN RAMON, CA 94582-5406 |
| Document Number | 0000290190 |
|---|---|
| Date | Nov 30, 2020 |
| Instrument | 2020-290190 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2050 |
The 2025 property tax bill for 4864 Cornflower St was $18,877 with a homeowner's exemption.
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 | $1,479,464 (+2%) Land $938,467 Building $540,997 | |
| 2025 | $18,877.00 Homeowner's exemption | $1,450,456 Land $920,066 Building $530,390 |
| 2023 | $18,135.00 (+1.31%) Homeowner's exemption | $1,394,136 Land $884,340 Building $509,796 |
| 2022 | $17,901.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4864 Cornflower St in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 4864 Cornflower St is low, with less than 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 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | Under 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 | DUBLIN SAN RAMON SERVICES DISTRICT serves 98,776 people · EPA ID CA0110009 |
|---|---|
| Water Source | Purchased surface water from ZONE 7 WATER AGENCY |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 ppb (2023–2025) 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.
Source: FCC Broadband Data Collection, based on 713 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| Sail Internet Fixed Wireless · DSL in parts of the area | 200 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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