Alameda County property record for 2525 Denning Ct, Castro Valley, CA 94546
| Property Type | Quadplex |
|---|---|
| Details | 8 bd · 5 ba · 3,820 sqft · built 1961 |
| Lot Size | 0.139 acres (6,050 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $790,000 (May 2013) |
| Tax Bill | $14,463 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 84A-181-8 |
| Primary APN | 84A-181-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 8 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 16 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 3,820 sqft Living Area |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Construction Type | Wood |
| Lot Area | 6,050 sqft (0.139 acres) |
| Street Address | 2525 DENNING CT |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-5247 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | LOT: 00006 BLK: 000A TR: 2080 |
| Legal Tract | 2080 |
| Legal Block | A |
| Legal Lot Number | 6 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 430900 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 6754 BERNAL AVE, 740, PLEASANTON, CA 94566-1235 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 24, 2013 · Amount on Record |
| Deed Sale | May 24, 2013 · Amount on Record |
| Prior Sale | Aug 29, 1996 · Amount on Record |
| Deed Document Number | 2013186843 |
| Prior Transfer Date | Sep 12, 1994 |
| Prior Transfer Doc | 0000317180 |
| Record Updated | Oct 29, 2026 |
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 |
|---|---|---|
| 2026 | $992,240 (+2%) Land $297,672 Building $694,568 | |
| 2025 | $14,463.00 (+4.89%) | $972,790 (+4.04%) Land $291,837 Building $680,953 |
| 2023 | $13,789.00 | $935,020 Land $280,506 Building $654,514 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 4 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land 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 709 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 2,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, T-Mobile.
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