Alameda County property record for 2517 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 | 2 Individual Names on Record |
| Last Sale | $775,000 (Jun 2003) |
| Tax Bill | $16,228 (2025) |
| Deeds & Mortgages | Jan 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 84A-181-9 |
| Primary APN | 84A-181-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 8 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 14 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 | 2517 DENNING CT |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-5246 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | LOT: 00007 BLK: 000A TR: 2080 |
| Legal Tract | 2080 |
| Legal Block | A |
| Legal Lot Number | 7 |
| 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 2517 DENNING CT, CASTRO VALLEY, CA 94546-5246 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 24, 2003 · Amount on Record |
| Deed Sale | Jun 24, 2003 · Amount on Record |
| Prior Sale | Jul 23, 1999 · Amount on Record |
| Deed Document Number | 2003366387 |
| Prior Transfer Date | Feb 23, 1998 |
| Prior Transfer Doc | 0000069945 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 2517 DENNING CT, CASTRO VALLEY, CA 94546-5246 |
| Transaction Type | Mortgage |
| Record Updated | Aug 22, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000009124 |
|---|---|
| Date | Jan 18, 2019 |
| Instrument | 2019009124 |
| Name | FREMONT BANK |
|---|---|
| Type | Bank |
| Address | LIVERMORE, CA 94551 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 16, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
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 | $1,144,798 (+2%) Land $343,439 Building $801,359 | |
| 2025 | $16,228.00 (+4.73%) | $1,122,354 (+4.04%) Land $336,706 Building $785,648 |
| 2023 | $15,495.00 | $1,078,784 Land $323,635 Building $755,149 |
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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