Contra Costa County property record for 603 Argyle Ct, San Ramon, CA 94582
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,655 sqft · built 2006 |
| Lot Size | 0.111 acres (4,838 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $854,500 (Mar 2007) |
| Tax Bill | $18,064 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 223-540-017-9 |
| Primary APN | 223-540-017-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,655 sqft Living Area |
| 1st Floor Area | 1,304 sqft |
| 2nd Floor Area | 1,351 sqft |
| Year Built | Built 2006 |
|---|---|
| Effective Year Built | Effective 2007 |
| Lot Area | 4,838 sqft (0.111 acres) |
| Garage Type | Attached |
| Garage Area | 584 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 603 ARGYLE CT |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94582-5293 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8928 L115 |
| Legal Subdivision | SUBDIVISION 8928 |
| Legal Tract | 8928 |
| Legal Lot Number | 115 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 355123 |
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 | 603 ARGYLE CT, SAN RAMON, CA 94582-5293 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 21, 2007 · Amount on Record |
| Deed Sale | Mar 21, 2007 · Amount on Record |
| Prior Sale | Aug 25, 2006 |
| Deed Document Number | 200781919 |
| Last Transfer Date | Oct 26, 2013 |
| Transfer Doc | 0000259168 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 603 ARGYLE CT, SAN RAMON, CA 94582-5293 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TTL SANTA ANA |
| Name | Verified Name |
|---|---|
| Address | 603 ARGYLE CT, SAN RAMON, CA 94582-5293 |
| Document Number | 0000059684 |
|---|---|
| Date | Feb 26, 2021 |
| Instrument | 2021-059684 |
| Name | GOOGAIN INC |
|---|---|
| Type | Mortgage Company |
| Address | SUNNYVALE, CA 94086 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Mar 1, 2036 |
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 | $1,202,442 (+2%) Land $449,598 Building $752,844 | |
| 2025 | $18,064.00 (+0.71%) Homeowner's exemption | $1,178,866 (+4.04%) Land $440,783 Building $738,083 |
| 2023 | $17,937.00 (+2%) Homeowner's exemption | $1,133,091 Land $423,668 Building $709,423 |
| 2022 | $17,586.00 |
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 | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.07% 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 | 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 638 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: T-Mobile, Verizon.
5G (outdoors only) and 4G LTE
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