Alameda County property record for 7521 Denison Pl, Castro Valley, CA 94552
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,690 sqft · built 1999 |
| Lot Size | 0.144 acres (6,265 sqft) |
| Owner | Individual Name on File |
| Last Sale | $443,000 (Apr 1999) |
| Tax Bill | $9,062 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 85A-6414-151 |
| Primary APN | 85A-6414-151 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,690 sqft Living Area |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 6,265 sqft (0.144 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 7521 DENISON PL |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94552-5307 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00033 BLK: TR: 5974 |
| Legal Tract | 5974 |
| Legal Lot Number | 33 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 430101 |
7521 Denison Pl is owned by an individual who acquired it in July 2012.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 20301, CASTRO VALLEY, CA 94546-8301 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 8, 1999 · Amount on File |
| Deed Sale | Apr 8, 1999 · Amount on File |
| Deed Document Number | 1999144672 |
| Last Transfer Date | Jul 12, 2012 |
| Transfer Doc | 0000259349 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 7521 Denison Pl was $9,062.
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 | $708,183 (+2%) Land $212,503 Building $495,680 | ||
| 2025 | $9,062.00 | $694,298 Land $208,336 Building $485,962 | |
| 2023 | $8,717.00 | $667,343 Land $200,248 Building $467,095 | $1,569,870 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 7521 Denison Pl in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 7521 Denison Pl is high, ranking above 79% of the US, with a 0.6% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 79% of the US · above 57% of California |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 496 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL | 100 / 20 |
May also be available: Unwired.
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