Alameda County property record for 4686 Porter St, Fremont, CA 94538
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,640 sqft · built 1959 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $565,000 (Aug 2008) |
| Tax Bill | $9,234 (2025) |
| Deeds & Mortgages | Jun 2020 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 525-967-98 |
| Primary APN | 525-967-98 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,640 sqft Living Area |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,000 sqft (0.161 acres) |
| Street Address | 4686 PORTER ST |
|---|---|
| City | FREMONT |
| State | CA |
| Zip | 94538-2525 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00176 BLK: 0009 TR: 2019 |
| Legal Tract | 2019 |
| Legal Block | 9 |
| Legal Lot Number | 176 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | FREMONT |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 442400 |
4686 Porter St is owned and occupied by two individuals who bought it in August 2008.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4686 PORTER ST, FREMONT, CA 94538-2525 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Aug 15, 2008 · Amount on File |
| Deed Sale | Aug 15, 2008 · Amount on File |
| Prior Sale | Mar 13, 2008 · Amount on File |
| Deed Document Number | 2008252861 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4686 PORTER ST, FREMONT, CA 94538-2525 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000146852 |
|---|---|
| Date | Jun 24, 2020 |
| Instrument | 2020146852 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jun 18, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 4686 Porter St was $9,234 with a homeowner's exemption.
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 | $735,081 (+1.04%) Land $222,624 Building $519,457 | ||
| 2025 | $9,234.00 Homeowner's exemption | $727,533 Land $218,260 Building $509,273 | |
| 2023 | $8,581.00 Homeowner's exemption | $699,288 Land $209,786 Building $489,502 | $1,216,890 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4686 Porter St 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.
The area around 4686 Porter 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 | 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 636 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Sail Internet Fixed Wireless | 1,000 / 200 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Tekify Fiber & Wireless Fixed Wireless | 600 / 130 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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