Alameda County property record for 3491 Middleton Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 2,930 sqft · built 1963 |
| Lot Size | 0.407 acres (17,724 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,280,000 (Sep 2025) |
| Tax Bill | $5,970 (2025) |
| Deeds & Mortgages | Dec 2025 Mortgage Sep 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1106-36-1 |
| Primary APN | 84D-1106-36-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,930 sqft Living Area |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1964 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 17,724 sqft (0.407 acres) |
| Street Address | 3491 MIDDLETON AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2041 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | RANCHO: MISC |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1004 |
| Census Tract | 430400 |
3491 Middleton Ave is owned by two individuals who bought it in September 2025.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18456 MILMAR BLVD, CASTRO VALLEY, CA 94546-2221 |
| Owner Type | Individual |
| Vesting | Joint Tenants |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Dec 10, 2025 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC |
| Sep 26, 2025 | Grant Deed, Transfer · Commercial Mortgage CENTER STREET LENDING CORPORATION |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 26, 2025 · Amount on File |
| Deed Sale | Sep 26, 2025 · Amount on File |
| Deed Document Number | 2025120520 |
| Prior Transfer Date | Sep 17, 2020 |
| Prior Transfer Doc | 0000250976 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 3491 MIDDLETON AVE, CASTRO VALLEY, CA 94546-2041 |
| Transaction Type | Mortgage |
| Record Updated | Jan 15, 2026 |
| Name | Verified Name |
|---|---|
| Address | 3491 MIDDLETON AVE, CASTRO VALLEY, CA 94546-2041 |
| Document Number | 0000157925 |
|---|---|
| Date | Dec 10, 2025 |
| Instrument | 2025157925 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Mortgage Company |
| Address | 3940 N RAVENSWOOD AVE, CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jan 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.12% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Jan 1, 2033 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 11.1% |
| Index | Other |
| Max Rate | 11.1% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 26, 2025 |
| Property Address | 3491 MIDDLETON AVE, CASTRO VALLEY, CA 94546-2041 |
| Document Number | 0000120520 |
| Instrument Date | Sep 22, 2025 |
| Instrument | 2025120520 |
| Transaction Type | Transfer |
| Record Updated | Oct 24, 2025 |
| Title Company | TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,408.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 18456 MILMAR BLVD, CASTRO VALLEY, CA 94546-2221 |
| Document Number | 0000120521 |
|---|---|
| Date | Sep 26, 2025 |
| Instrument | 2025120521 |
| Name | CENTER STREET LENDING CORPORATION |
|---|---|
| Type | Mortgage Company |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 3491 Middleton Ave was $5,970.
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 | $1,280,000 (+191.38%) Land $384,000 Building $896,000 | ||
| 2025 | $5,970.00 Homeowner's exemption | $439,296 Land $209,593 Building $229,703 | |
| 2023 | $5,724.00 Homeowner's exemption | $422,238 Land $201,455 Building $220,783 | $1,515,060 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 3491 Middleton Ave 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 3491 Middleton Ave is low, with a 0.01% annual chance of wildfire.
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 606 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, Unwired, Verizon.
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