Alameda County property record for 5963 Castlebrook Dr, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 3,253 sqft · built 1986 |
| Lot Size | 0.196 acres (8,538 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $6,425 (2025) |
| Deeds & Mortgages | Apr 2018 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-6313-20 |
| Primary APN | 85-6313-20 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,253 sqft Living Area |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 8,538 sqft (0.196 acres) |
| Street Address | 5963 CASTLEBROOK DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1643 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00041 BLK: TR: 5053 |
| Legal Tract | 5053 |
| Legal Lot Number | 41 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 430200 |
5963 Castlebrook Dr is owner-occupied and held in a trust since March 2018.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 5963 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1643 |
| Occupancy | Owner Occupied |
| 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 | Mar 29, 2018 |
| Transfer Doc | 0000067089 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Apr 3, 2018 |
| Property Address | 5963 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1643 |
| Document Number | 0000067089 |
| Instrument Date | Mar 29, 2018 |
| Instrument | 67089 |
| Transaction Type | Transfer |
| Record Updated | Apr 16, 2018 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 5963 CASTLEBROOK DR CASTRO VALLEY CA 945521643, CASTRO VALLEY, CA 94552-1643 |
The 2025 property tax bill for 5963 Castlebrook Dr was $6,425 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 | $480,429 (+0.54%) Land $75,154 Building $412,275 | ||
| 2025 | $6,425.00 Homeowner's exemption | $477,872 Land $73,680 Building $404,192 | |
| 2023 | $6,164.00 Homeowner's exemption | $459,317 Land $70,819 Building $388,498 | $1,909,890 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 5963 Castlebrook Dr 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 5963 Castlebrook Dr is moderate, ranking above 66% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 66% of the US · above 41% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 153 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: Unwired.
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