Alameda County property record for 18653 Alcorn Pl, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,748 sqft · built 2008 |
| Lot Size | 0.184 acres (8,010 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,680,000 (Aug 2022) |
| Tax Bill | $20,363 (2025) |
| Deeds & Mortgages | Aug 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-1070-11 |
| Primary APN | 84C-1070-11 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,748 sqft Living Area |
| Year Built | Built 2008 |
|---|---|
| Effective Year Built | Effective 2008 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 8,010 sqft (0.184 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 18653 ALCORN PL |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3109 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00009 BLK: TR: 7305 |
| Legal Subdivision | 7305 EDEN TOWNSHIP |
| Legal Tract | 7305 |
| Legal Lot Number | 9 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 4 |
| Census Block | 4005 |
| Census Tract | 430200 |
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 | 18653 ALCORN PL, CASTRO VALLEY, CA 94546-3109 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 10, 2022 · Amount on Record |
| Deed Sale | Aug 10, 2022 · Amount on Record |
| Prior Sale | Jul 23, 2010 · Amount on Record |
| Deed Document Number | 2022140872 |
| Prior Transfer Date | Nov 21, 2016 |
| Prior Transfer Doc | 0000319307 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 10, 2022 |
| Property Address | 18653 ALCORN PL, CASTRO VALLEY, CA 94546-3109 |
| Document Number | 0000140872 |
| Map Reference | MB 301 PG 96-98 |
| Instrument Date | Aug 4, 2022 |
| Instrument | 2022140872 |
| Transaction Type | Transfer |
| Record Updated | Sep 2, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,848.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 18653 ALCORN PL, CASTRO VALLEY, CA 94546-3109 |
| Document Number | 0000140873 |
|---|---|
| Date | Aug 10, 2022 |
| Instrument | 2022140873 |
| Name | PNC BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 1, 2052 |
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 | $1,775,815 (+7.04%) Land $534,844 Building $1,247,971 | ||
| 2025 | $20,363.00 (+6.88%) Homeowner's exemption | $1,659,000 (+7.38%) Land $497,700 Building $1,161,300 | |
| 2023 | $19,052.00 Homeowner's exemption | $1,545,000 Land $463,500 Building $1,081,500 | $1,479,330 |
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 · 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 | 1 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 | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 724 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 · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, T-Mobile.
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