Alameda County property record for 1057 Mariposa Ave, Berkeley, CA 94707
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,088 sqft · built 1925 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $2,550,000 (Sep 2024) |
| Tax Bill | $39,771 (2025) |
| Deeds & Mortgages | Feb 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 61-2560-25 |
| Primary APN | 61-2560-25 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 3,088 sqft Living Area |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1935 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,200 sqft (0.165 acres) |
| Street Address | 1057 MARIPOSA AVE |
|---|---|
| City | BERKELEY |
| State | CA |
| Zip | 94707-2443 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00025 BLK: AR: 0061 PAGE: 2560 |
| Legal Subdivision | NORTHBRAE TERRACE |
| Legal Block | F |
| Legal Lot Number | 34&33 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | BERKELEY |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 421400 |
1057 Mariposa Ave is owner-occupied and held in a trust since September 2024.
Source: Alameda County records, as of August 26, 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 Trust Names on File |
|---|---|
| Mailing Address | 3999 WHITTLE AVE, OAKLAND, CA 94602-2433 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 11, 2024 · Amount on File |
| Deed Sale | Sep 11, 2024 · Amount on File |
| Deed Document Number | 2024110933 |
| Prior Transfer Date | Apr 24, 1996 |
| Prior Transfer Doc | 0000105970 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Feb 24, 2023 |
| Property Address | 1057 MARIPOSA AVE, BERKELEY, CA 94707-2443 |
| Document Number | 0000023261 |
| Map Reference | MB 23 PG 59 |
| Instrument Date | Dec 11, 2022 |
| Instrument | 2023023261 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1057 MARIPOSA AVE, BERKELEY, CA 94707-2443 |
The 2025 property tax bill for 1057 Mariposa Ave was $39,771 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| 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 |
|---|---|---|---|
| 2026 | $2,594,000 (+1.73%) Land $780,300 Building $1,820,700 | ||
| 2025 | $39,771.00 | $2,550,000 Land $765,000 Building $1,785,000 | |
| 2023 | $8,043.00 Homeowner's exemption | $184,757 Land $81,299 Building $103,458 | $2,071,170 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 1057 Mariposa Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 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.
Wildfire risk around 1057 Mariposa Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% 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 972 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: AT&T, GeoLinks, T-Mobile, Verizon.
5G (outdoors only) and 4G LTE
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