Alameda County property record for 3770 Avansino St, San Leandro, CA 94578
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,517 sqft · built 1978 |
| Lot Size | 0.114 acres (4,958 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $9,609 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 77B-1157-62 |
| Primary APN | 77B-1157-62 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,517 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | L-Shape |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 4,958 sqft (0.114 acres) |
| Garage Type | Attached |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3770 AVANSINO ST |
|---|---|
| City | SAN LEANDRO |
| State | CA |
| Zip | 94578-4162 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00025 BLK: TR: 4016 |
| Legal Tract | 4016 |
| Legal Lot Number | 25 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 433200 |
3770 Avansino St is held in a trust since December 2008.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 3764 MORTENSEN RD, SAN LEANDRO, CA 94578-4150 |
| Owner Type | Company |
| Vesting | Trust |
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 |
|---|---|
| Last Transfer Date | Dec 18, 2008 |
| Transfer Doc | 0000006540 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 3770 Avansino St was $9,609.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | San Leandro City |
| Unified School District | San Leandro Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $723,431 (+2%) Land $217,029 Building $506,402 | ||
| 2025 | $9,609.00 | $709,251 Land $212,775 Building $496,476 | |
| 2023 | $9,260.00 | $681,717 Land $204,515 Building $477,202 | $810,360 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3770 Avansino St in Zone X, an area of minimal flood risk.
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 |
| Flood Insurance Cost | Premium on File median of 16 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 16 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.
The area around 3770 Avansino 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 | 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 544 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, RobinsonHSS, Sonic Telecom, T-Mobile, Tekify Fiber & Wireless.
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