Contra Costa County property record for 1640 Waltham Rd, Concord, CA 94520
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,575 sqft · built 1947 |
| Lot Size | 0.216 acres (9,425 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,254 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 128-022-003-7 |
| Primary APN | 128-022-003-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,575 sqft Living Area |
| 1st Floor Area | 1,575 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 9,425 sqft (0.216 acres) |
| Garage Type | Detached |
| Garage Area | 720 sqft |
| Parking Spaces | 3 Parking Spaces |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 1640 WALTHAM RD |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-3418 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R75 |
| Legal Description | MEADOW HOMES #2 LOT 33 |
| Legal Subdivision | MEADOW HOMES 02 |
| Legal Lot Number | 33 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 336201 |
1640 Waltham Rd is owned and occupied by an individual.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1640 WALTHAM RD, CONCORD, CA 94520-3418 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1640 Waltham Rd was $3,254 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 | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $214,392 (+2%) Land $97,943 Building $116,449 | |
| 2025 | $3,254.00 Homeowner's exemption | $210,189 Land $96,023 Building $114,166 |
| 2023 | $3,075.00 (+2.09%) Homeowner's exemption | $202,030 Land $92,296 Building $109,734 |
| 2022 | $3,012.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1640 Waltham Rd in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 4 (1978–1998) |
| Claims Outside the SFHA | 1 of 4 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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.
The area around 1640 Waltham Rd 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 119 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: AT&T, T-Mobile, Verizon.
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