Contra Costa County property record for 4006 Dunbarton Cir, San Ramon, CA 94583
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,727 sqft · built 1985 |
| Lot Size | 0.343 acres (14,924 sqft) |
| Owner | Company Name on File |
| Tax Bill | $6,917 (2025) |
| Deeds & Mortgages | May 2019 Mortgage Mar 2020 Mortgage + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 213-112-016 |
| Primary APN | 213-112-016 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,727 sqft Living Area |
| 1st Floor Area | 1,492 sqft |
| 2nd Floor Area | 1,235 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1986 |
| Lot Area | 14,924 sqft (0.343 acres) |
| Garage Type | Attached |
| Garage Area | 672 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4006 DUNBARTON CIR |
|---|---|
| City | SAN RAMON |
| State | CA |
| Zip | 94583-2565 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T05520 L0022 B |
| Legal Subdivision | SUBDIVISION 5520 |
| Legal Tract | 05520 |
| Legal Lot Number | 22 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 345111 |
Source: Contra Costa County records · APN 213-112-016
Assessment roll updated July 14, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| May 22, 2019 | Deed of Trust, Mortgage · ARM JPMORGAN CHASE BANK NA |
| Mar 24, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Oct 22, 2021 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Nov 14, 2018 | Deed of Trust, Mortgage · Line of Credit CALIFORNIA BK&TR |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Feb 14, 2012 |
| Transfer Doc | 0000041056 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | AMROCK TITLE CALIFORNIA INC |
| Name | Verified Name |
|---|
| Document Number | 0000075073 |
|---|---|
| Date | May 22, 2019 |
| Instrument | 2019-075073 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.62% |
| Type Change Date | Jun 01, 2029 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 8.62% |
| Index | 1-Year LIBOR |
| Max Rate | 8.62% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | AMROCK TITLE CALIFORNIA INC |
| Name | Verified Name |
|---|
| Document Number | 0000056377 |
|---|---|
| Date | Mar 24, 2020 |
| Instrument | 2020-056377 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2050 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Transaction Type | Mortgage |
| Record Updated | Nov 03, 2022 |
| Title Company | AMROCK TITLE CALIFORNIA INC |
| Name | Verified Name |
|---|---|
| Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Document Number | 0000297134 |
|---|---|
| Date | Oct 22, 2021 |
| Instrument | 2021-297134 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 01, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4006 DUNBARTON CIR, SAN RAMON, CA 94583-2565 |
| Document Number | 0000194826 |
| Instrument Date | Nov 14, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Dec 14, 2018 |
| Title Company | ISGN FULFILLMENT SERVICES INC, ISGN FULFILLMENT SVC INC |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 4006 DUNBARTON CIR SAN RAMON CA 945832565, SAN RAMON, CA 94583-2565 |
| Investor | Possibly a Property Investor |
| Document Number | 0000194826 |
|---|---|
| Date | Dec 05, 2018 |
| Instrument | 194826 |
| Name | CALIFORNIA BK&TR |
|---|---|
| Type | Bank |
| Address | ENCINITAS, CA 92024 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | San Ramon City |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $557,797 (+2%) Land $146,231 Building $411,566 | |
| 2025 | $6,917.00 (+4.02%) Homeowner's exemption | $546,861 (+4.04%) Land $143,364 Building $403,497 |
| 2023 | $6,650.00 (+0.79%) Homeowner's exemption | $525,628 Land $137,798 Building $387,830 |
| 2022 | $6,598.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
Based on FCC filings for 633 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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