Alameda County property record for 280 Mortimer Ave, Fremont, CA 94536
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,268 sqft · built 1978 |
| Lot Size | 0.139 acres (6,065 sqft) |
| Owner | Individual Name on File |
| Last Sale | $670,000 (Jun 2014) |
| Tax Bill | $10,417 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 507-435-143 |
| Primary APN | 507-435-143 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,268 sqft Living Area |
| Year Built | Built 1978 |
|---|---|
| Effective Year Built | Effective 1979 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,065 sqft (0.139 acres) |
| Street Address | 280 MORTIMER AVE |
|---|---|
| City | FREMONT |
| State | CA |
| Zip | 94536-4317 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00197 BLK: TR: 3562 |
| Legal Tract | 3562 |
| Legal Lot Number | 197 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 441924 |
280 Mortimer Ave is owned by an individual who bought it in June 2014.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 965 FARRAGUT DR, FREMONT, CA 94539-4585 |
| Owner Type | Individual |
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 Sale | Jun 30, 2014 · Amount on File |
| Deed Sale | Jun 30, 2014 · Amount on File |
| Prior Sale | Dec 8, 1995 · Amount on File |
| Deed Document Number | 2014154374 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 280 Mortimer Ave was $10,417.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Fremont City |
| Unified School District | Fremont Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $837,714 (+2%) Land $251,314 Building $586,400 | ||
| 2025 | $10,417.00 | $821,291 Land $246,387 Building $574,904 | |
| 2023 | $9,676.00 | $789,407 Land $236,822 Building $552,585 | $1,211,130 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 280 Mortimer 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 280 Mortimer Ave is low, with 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 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 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 | ALAMEDA COUNTY WATER DISTRICT serves 344,000 people · EPA ID CA0110001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| 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.
Source: FCC Broadband Data Collection, based on 783 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 / 2,000 |
| Tekify Fiber & Wireless Fixed Wireless | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T Fixed Wireless · Fiber, DSL in parts of the area | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Sail Internet.
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