Contra Costa County property record for 3620 Dumbarton St, Concord, CA 94519
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,260 sqft · built 1964 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $510,000 (Jan 2007) |
| Tax Bill | $8,553 (2025) |
| Deeds & Mortgages | Jan 2018 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 111-344-022-4 |
| Primary APN | 111-344-022-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,260 sqft Living Area |
| 1st Floor Area | 1,260 sqft |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 437 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 3620 DUMBARTON ST |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94519-1610 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | TRACT 3071 LOT 397 EX MR |
| Legal Subdivision | SUN TERRACE EAST UNIT #4 |
| Legal Tract | 3071 |
| Legal Lot Number | 397 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 330000 |
3620 Dumbarton St is owned and occupied by two individuals who acquired it in November 2017.
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 | 3620 DUMBARTON ST, CONCORD, CA 94519-1610 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 4, 2007 · Amount on File |
| Deed Sale | Jan 4, 2007 · Amount on File |
| Prior Sale | Feb 25, 2002 · Amount on File |
| Deed Document Number | 20072978 |
| Last Transfer Date | Nov 30, 2017 |
| Transfer Doc | 0000002845 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 9, 2018 |
| Property Address | 3620 DUMBARTON ST, CONCORD, CA 94519-1610 |
| Document Number | 0000002845 |
| Map Reference | MB 93 PG 36 |
| Instrument Date | Nov 30, 2017 |
| Instrument | 2018-002845 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | NORTH AMERICAN TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3620 DUMBARTON ST, CONCORD, CA 94519-1610 |
| Document Number | 0000002846 |
|---|---|
| Date | Jan 9, 2018 |
| Instrument | 2018-002846 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2048 |
| Document Number | 0000002846 |
|---|---|
| Date | Jan 9, 2018 |
| Instrument | 2018-002846 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Feb 1, 2048 |
The 2025 property tax bill for 3620 Dumbarton St was $8,553.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $696,941 (+2%) Land $478,707 Building $218,234 | |
| 2025 | $8,553.00 | $683,276 Land $469,321 Building $213,955 |
| 2023 | $8,183.00 (+1.31%) | $656,746 Land $451,098 Building $205,648 |
| 2022 | $8,077.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3620 Dumbarton 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.
The area around 3620 Dumbarton St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 762 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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