Alameda County property record for 4232 Heyer Ave, Castro Valley, CA 94546 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 4.5 ba · 3,738 sqft · built 1947 |
| Lot Size | 0.192 acres (8,340 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,375,000 (Aug 2020) |
| Tax Bill | $18,176 (2025) |
| Deeds & Mortgages | Dec 2021 Mortgage Aug 2020 Sale & Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 84C-787-9 |
| Primary APN | 84C-787-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 3,738 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 8,340 sqft (0.192 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4232 HEYER AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-3508 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00009 BLK: AR: 084C PAGE: 0787 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 430200 |
Source: Alameda County records · APN 84C-787-9
Assessment roll updated June 20, 2025 · Last verified July 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 File |
|---|---|
| Mailing Address | 4232 HEYER AVE, CASTRO VALLEY, CA 94546-3508 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 21, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage SAN MATEO CU |
| Aug 12, 2020 | Grant Deed, Transfer · Conventional Mortgage AMERICAN PACIFIC MORTGAGE |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 12, 2020 · Amount on Record |
| Deed Sale | Aug 12, 2020 · Amount on Record |
| Prior Sale | Jun 30, 2005 · Amount on Record |
| Deed Document Number | 2020196027 |
| Last Transfer Date | Dec 10, 2021 |
| Transfer Doc | 0000402314 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Dec 21, 2021 |
| Property Address | 4232 HEYER AVE, CASTRO VALLEY, CA 94546-3508 |
| Document Number | 0000402314 |
| Instrument Date | Dec 10, 2021 |
| Instrument | 2021402314 |
| Transaction Type | Transfer |
| Record Updated | Jan 14, 2022 |
| Title Company | NORTH AMERICAN TITLE COMPANY, NORTH AMERICAN TITLE CO INC |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4232 HEYER AVE, CASTRO VALLEY, CA 94546-3508 |
| Document Number | 0000402315 |
|---|---|
| Date | Dec 21, 2021 |
| Instrument | 2021402315 |
| Name | SAN MATEO CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 01, 2052 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 12, 2020 |
| Property Address | 4232 HEYER AVE, CASTRO VALLEY, CA 94546-3508 |
| Document Number | 0000196027 |
| Instrument Date | Aug 05, 2020 |
| Instrument | 2020196027 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4232 HEYER AVE, CASTRO VALLEY, CA 94546-3508 |
| Document Number | 0000196028 |
|---|---|
| Date | Aug 12, 2020 |
| Instrument | 2020196028 |
| Name | AMERICAN PACIFIC MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 01, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4.25% |
| Type Change Date | Sep 01, 2027 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 9.25% |
| Index | 1-Year LIBOR |
| Max Rate | 9.25% |
Source: Alameda County records · Assessment roll updated June 20, 2025 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $18,176.00 (+2.19%) Homeowner's exemption | $1,466,738 (+3.54%) Land $442,121 Building $1,031,617 | |
| 2024 | $17,787.00 (+1.48%) | ||
| 2023 | $17,527.00 Homeowner's exemption | $1,416,524 Land $424,957 Building $991,567 | $1,491,570 |
Source: FEMA National Flood Hazard Layer, Alameda County (06001C), updated May 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060014302003, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Moderate |
| 500-Year Floodplain | Yes |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 3 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 704 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Sonic Telecom | Fiber | 10,000 / 10,000 |
| AT&T | Fiber | 5,000 / 5,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Etheric Communications, LLC. | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
| Starlink | Satellite (low-earth orbit) | 280 / 30 |
May also be available at this address: AT&T, California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.
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