Alameda County property record for 5861 Alderbrook Ct, Castro Valley, CA 94552 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 2,262 sqft · built 1984 |
| Lot Size | 0.171 acres (7,460 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,457 (2025) |
| Deeds & Mortgages | Apr 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-6309-24 |
| Primary APN | 85-6309-24 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,262 sqft Living Area |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 7,460 sqft (0.171 acres) |
| Street Address | 5861 ALDERBROOK CT |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1748 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00081 BLK: TR: 3983 |
| Legal Tract | 3983 |
| Legal Lot Number | 81 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 430200 |
Source: Alameda County records · APN 85-6309-24
Assessment roll updated August 5, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 5861 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jun 27, 2000 |
| Transfer Doc | 0000213653 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 5861 ALDERBROOK CT, CASTRO VALLEY, CA 94552-1748 |
| Document Number | 0000082201 |
| Instrument Date | Apr 19, 2018 |
| Transaction Type | Mortgage |
| Record Updated | May 08, 2018 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 5861 ALDERBROOK CT CASTRO VALLEY CA 945521748, CASTRO VALLEY, CA 94552-1748 |
| Document Number | 0000082201 |
|---|---|
| Date | Apr 25, 2018 |
| Instrument | 82201 |
| Name | FREMONT BK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 24, 2048 |
| Rate Type | Adjustable Rate |
|---|
Source: Alameda County records · Assessment roll updated August 5, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $396,771 (+0.23%) Land $72,906 Building $330,865 | ||
| 2025 | $5,457.00 (+4.36%) Homeowner's exemption | $395,855 (+4.04%) Land $71,477 Building $324,378 | |
| 2023 | $5,229.00 Homeowner's exemption | $380,485 Land $68,701 Building $311,784 | $1,520,280 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Wildfire Risk | High above 72% of the US · above 48% of California |
|---|---|
| Wildfire Likelihood | About 1 in 311 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 208 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: Unwired, AT&T. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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