Alameda County property record for 21 Gonsalves Ct, Alameda, CA 94502
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,665 sqft · built 1997 |
| Lot Size | 0.161 acres (7,014 sqft) |
| Owner | Company Name on File |
| Last Sale | $1,300,000 (Oct 2004) |
| Tax Bill | $24,770 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 74-1350-74 |
| Primary APN | 74-1350-74 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,665 sqft Living Area |
| Year Built | Built 1997 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 7,014 sqft (0.161 acres) |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 21 GONSALVES CT |
|---|---|
| City | ALAMEDA |
| State | CA |
| Zip | 94502-7792 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 6226 LOT 44 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | ALAMEDA |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 428302 |
Source: Alameda County records · APN 74-1350-74
Assessment roll updated July 1, 2025 · Last verified October 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 21 GONSALVES CT, ALAMEDA, CA 94502-7792 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Oct 05, 2004 · Amount on Record |
| Deed Sale | Oct 05, 2004 · Amount on Record |
| Prior Sale | Oct 05, 2004 · Amount on Record |
| Deed Document Number | 0000449167 |
| Last Transfer Date | Jul 15, 2016 |
| Transfer Doc | 0000179091 |
| Record Updated | Jun 08, 2026 |
Source: Alameda County records · Assessment roll updated July 1, 2025 · Last verified October 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Alameda City |
| Unified School District | Alameda City Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $24,770.00 (+6.49%) Homeowner's exemption | $1,811,913 (+4.04%) Land $543,574 Building $1,268,339 |
| 2023 | $23,260.00 Homeowner's exemption | $1,741,570 Land $522,471 Building $1,219,099 |
Source: FEMA National Flood Hazard Layer as of May 25, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone VE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 14 policies |
| Community Rating System | Class 8 (10% premium discount) |
| Nearby Flood Policies | 14 in force |
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Verizon.
Based on FCC filings for 526 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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