Alameda County property record for 6300 Mount Olympus Dr, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,088 sqft · built 1987 |
| Lot Size | 0.134 acres (5,825 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,060,000 (Sep 2020) |
| Tax Bill | $14,325 (2025) |
| Deeds & Mortgages | Sep 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6408-67 |
| Primary APN | 85A-6408-67 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,088 sqft Living Area |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,825 sqft (0.134 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 6300 MOUNT OLYMPUS DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-1933 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00086 BLK: TR: 5500 |
| Legal Tract | 5500 |
| Legal Lot Number | 86 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 430101 |
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 | 6300 MOUNT OLYMPUS DR, CASTRO VALLEY, CA 94552-1933 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 10, 2020 · Amount on Record |
| Deed Sale | Sep 10, 2020 · Amount on Record |
| Prior Sale | Jun 22, 2005 · Amount on Record |
| Deed Document Number | 2020228195 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 10, 2020 |
| Property Address | 6300 MOUNT OLYMPUS DR, CASTRO VALLEY, CA 94552-1933 |
| Document Number | 0000228195 |
| Map Reference | MB 160 PG 96-100 |
| Instrument Date | Sep 4, 2020 |
| Instrument | 2020228195 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Living Trust |
| Address | 6211 FAIRLANE DR, OAKLAND, CA 94611-1809 |
| Document Number | 0000228196 |
|---|---|
| Date | Sep 10, 2020 |
| Instrument | 2020228196 |
| Name | CALIBER HOME LOANS INC |
|---|---|
| Type | Mortgage Company |
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2050 |
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 | $1,163,303 (+1.39%) Land $351,091 Building $819,212 | ||
| 2025 | $14,325.00 (+3.78%) Homeowner's exemption | $1,147,364 (+4.04%) Land $344,209 Building $803,155 | |
| 2023 | $13,803.00 Homeowner's exemption | $1,102,823 Land $330,847 Building $771,976 | $1,145,250 |
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 | Moderate above 63% of the US · lower than 61% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect 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 | 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 495 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 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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