Alameda County property record for 840 Contra Costa Ave, Berkeley, CA 94707
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 3.5 ba · 4,141 sqft · built 1918 |
| Lot Size | 0.134 acres (5,824 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,306,000 (May 2005) |
| Tax Bill | $30,886 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 61-2575-20 |
| Primary APN | 61-2575-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 4,141 sqft Living Area |
| Year Built | Built 1918 |
|---|---|
| Effective Year Built | Effective 1935 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,824 sqft (0.134 acres) |
| Street Address | 840 CONTRA COSTA AVE |
|---|---|
| City | BERKELEY |
| State | CA |
| Zip | 94707-1920 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00020 BLK: AR: 0061 PAGE: 2575 |
| Legal Subdivision | BERKELEY SQUARE |
| Legal Block | 1 |
| Legal Lot Number | 5 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | BERKELEY |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 421200 |
Source: Alameda County records, as of August 21, 2025
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 | 840 CONTRA COSTA AVE, BERKELEY, CA 94707-1920 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 19, 2005 · Amount on Record |
| Deed Sale | May 19, 2005 · Amount on Record |
| Prior Sale | Jul 13, 2004 · Amount on Record |
| Deed Document Number | 2005206394 |
| Prior Transfer Date | Jul 1, 2004 |
| Prior Transfer Doc | 0000317740 |
| Record Updated | Sep 20, 2026 |
Source: Alameda County assessment roll, as of June 20, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Berkeley City |
| Unified School District | Berkeley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $30,886.00 (+10.24%) | $1,822,274 (+3.64%) Land $545,804 Building $1,283,470 | |
| 2024 | $28,017.00 (+2.12%) | ||
| 2023 | $27,435.00 Homeowner's exemption | $1,758,256 Land $524,614 Building $1,233,642 | $2,216,160 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 5 in force |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 97.4% 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| 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, 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.
Source: FCC Broadband Data Collection, based on 922 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 | 1,200 / 35 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks.
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