Alameda County property record for 6001 Castlebrook Dr, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,196 sqft · built 1986 |
| Lot Size | 0.147 acres (6,400 sqft) |
| Owner | Company Name on Record |
| Last Sale | $650,000 (Mar 2004) |
| Tax Bill | $11,691 (2025) |
| Deeds & Mortgages | May 2023 Transfer Apr 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 85-6313-24 |
| Primary APN | 85-6313-24 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,196 sqft Living Area |
| Year Built | Built 1986 |
|---|---|
| Effective Year Built | Effective 1986 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,400 sqft (0.147 acres) |
| Street Address | 6001 CASTLEBROOK DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1645 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00045 BLK: TR: 5053 |
| Legal Subdivision | TRACT 5053 |
| Legal Tract | 5053 |
| Legal Lot Number | 45 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 430200 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| May 16, 2023 | Intrafamily Transfer, Transfer |
| Apr 12, 2021 | Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC |
| Mar 28, 2018 | Deed of Trust, Mortgage · Line of Credit CALIFORNIA BK&TR |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 30, 2004 · Amount on Record |
| Deed Sale | Mar 30, 2004 · Amount on Record |
| Prior Sale | Oct 13, 1993 · Amount on Record |
| Deed Document Number | 2004131928 |
| Last Transfer Date | Mar 24, 2023 |
| Transfer Doc | 0000055588 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | May 16, 2023 |
| Property Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Document Number | 0000055588 |
| Map Reference | MB 148 PG 5-10 |
| Instrument Date | Mar 24, 2023 |
| Instrument | 2023055588 |
| Transaction Type | Transfer |
| Record Updated | Jun 12, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Transaction Type | Mortgage |
| Record Updated | May 7, 2021 |
| Title Company | AMROCK INC |
| Name | Verified Name |
|---|---|
| Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Document Number | 0000144810 |
|---|---|
| Date | Apr 12, 2021 |
| Instrument | 2021144810 |
| Name | QUICKEN LOANS LLC |
|---|---|
| Type | Mortgage Company |
| Address | DETROIT, MI 48226 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 239 Months |
| Due | Mar 1, 2041 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 6001 CASTLEBROOK DR, CASTRO VALLEY, CA 94552-1645 |
| Document Number | 0000077702 |
| Instrument Date | Mar 28, 2018 |
| Transaction Type | Mortgage |
| Record Updated | May 1, 2018 |
| Title Company | ISGN RECORDING DEPT |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 6001 CASTLEBROOK DR CASTRO VALLEY CA 945521645, CASTRO VALLEY, CA 94552-1645 |
| Document Number | 0000077702 |
|---|---|
| Date | Apr 18, 2018 |
| Instrument | 77702 |
| Name | CALIFORNIA BK&TR |
|---|---|
| Type | Bank |
| Address | WALNUT CREEK, CA 94596 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
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 | $1,000,190 (+8.23%) Land $282,777 Building $724,413 | ||
| 2025 | $11,691.00 (+3.86%) Homeowner's exemption | $924,111 (+4.04%) Land $277,233 Building $646,878 | |
| 2023 | $11,256.00 Homeowner's exemption | $888,231 Land $266,469 Building $621,762 | $1,485,720 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 70% of the US · above 45% of California |
|---|---|
| Wildfire Likelihood | 0.4% annual chance |
| Exposure | Direct burnable vegetation |
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 64 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Starlink Satellite | 280 / 30 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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