Alameda County property record for 3943 Forest Cir, Castro Valley, CA 94546
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 3.5 ba · 1,551 sqft · built 2009 |
| Lot Size | 0.034 acres (1,500 sqft) |
| Owner | Individual Name on File |
| Last Sale | $400,000 (Dec 2009) |
| Tax Bill | $6,879 (2025) |
| Deeds & Mortgages | Nov 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-1071-24 |
| Primary APN | 84C-1071-24 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 3 Stories |
| Building Area | 1,551 sqft Living Area |
| Year Built | Built 2009 |
|---|---|
| Effective Year Built | Effective 2009 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 1,500 sqft (0.034 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3943 FOREST CIR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4594 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | LOT: 00021 BLK: TR: 7709 |
| Legal Subdivision | UNINCORPORATED |
| Legal Tract | 7709 |
| Legal Lot Number | 21 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 430800 |
3943 Forest Cir, a townhouse, is owned and occupied by an individual who bought it in December 2009.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3943 FOREST CIR, CASTRO VALLEY, CA 94546-4594 |
| Occupancy | Owner Occupied |
| 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 | Dec 18, 2009 · Amount on File |
| Deed Sale | Dec 18, 2009 · Amount on File |
| Deed Document Number | 2009389566 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 3943 FOREST CIR, CASTRO VALLEY, CA 94546-4594 |
| Transaction Type | Mortgage |
| Record Updated | Dec 13, 2021 |
| Title Company | BOSTON NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 3943 FOREST CIR, CASTRO VALLEY, CA 94546-4594 |
| Document Number | 0000376840 |
|---|---|
| Date | Nov 19, 2021 |
| Instrument | 2021376840 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 121 Months |
| Due | Dec 1, 2031 |
The 2025 property tax bill for 3943 Forest Cir was $6,879 with a homeowner's exemption.
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $519,615 (+0.64%) Land $157,984 Building $368,631 | ||
| 2025 | $6,879.00 Homeowner's exemption | $516,291 Land $154,887 Building $361,404 | |
| 2023 | $6,603.00 Homeowner's exemption | $496,247 Land $148,874 Building $347,373 | $810,810 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3943 Forest Cir 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 |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 1 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.
Wildfire risk around 3943 Forest Cir 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 94% of the US · lower than 96% 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 777 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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