Alameda County property record for 4327 Circle Ave, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,255 sqft · built 1953 |
| Lot Size | 0.13 acres (5,670 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $829,000 (Jun 2020) |
| Tax Bill | $11,580 (2025) |
| Deeds & Mortgages | Feb 2021 Mortgage Jun 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84C-674-29 |
| Primary APN | 84C-674-29 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,255 sqft Living Area |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1954 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,670 sqft (0.13 acres) |
| Street Address | 4327 CIRCLE AVE |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-4649 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00005 BLK: 0002 TR: 1162 |
| Legal Subdivision | TRACT 1162 |
| Legal Tract | 1162 |
| Legal Lot Number | 2 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 430800 |
4327 Circle Ave is owned and occupied by two individuals who bought it in June 2020.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4327 CIRCLE AVE, CASTRO VALLEY, CA 94546-4649 |
| Occupancy | Owner Occupied |
| 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.
| Date | Document |
|---|---|
| Feb 11, 2021 | Deed of Trust, Mortgage · Conventional Mortgage AMERIS BANK |
| Jun 19, 2020 | Grant Deed, Transfer · Conventional Mortgage AMERIS BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 19, 2020 · Amount on File |
| Deed Sale | Jun 19, 2020 · Amount on File |
| Deed Document Number | 2020142439 |
| Prior Transfer Date | Jan 14, 2004 |
| Prior Transfer Doc | 0000027729 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4327 CIRCLE AVE, CASTRO VALLEY, CA 94546-4649 |
| Transaction Type | Mortgage |
| Record Updated | Mar 26, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 4327 CIRCLE AVE, CASTRO VALLEY, CA 94546-4649 |
| Document Number | 0000061485 |
|---|---|
| Date | Feb 11, 2021 |
| Instrument | 2021061485 |
| Name | AMERIS BANK |
|---|---|
| Type | Bank |
| Address | MARIETTA, GA 30067 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 181 Months |
| Due | Mar 1, 2036 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jun 19, 2020 |
| Property Address | 4327 CIRCLE AVE, CASTRO VALLEY, CA 94546-4649 |
| Document Number | 0000142439 |
| Map Reference | MB 33 PG 21 |
| Instrument Date | Jun 16, 2020 |
| Instrument | 2020142439 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | NORTH AMERICAN TITLE CO INC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| 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 | 4327 CIRCLE AVE, CASTRO VALLEY, CA 94546-4649 |
| Document Number | 0000142440 |
|---|---|
| Date | Jun 19, 2020 |
| Instrument | 2020142440 |
| Name | AMERIS BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2050 |
The 2025 property tax bill for 4327 Circle Ave was $11,580 with a homeowner's exemption.
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 | $918,864 (+1.23%) Land $277,759 Building $648,105 | ||
| 2025 | $11,580.00 | $907,712 Land $272,313 Building $635,399 | |
| 2023 | $11,152.00 | $872,470 Land $261,741 Building $610,729 | $889,290 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4327 Circle Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1997.
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 |
| Nearby Flood Claims | 1 (1997) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Nov 1997 · river or lake flooding |
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.
Wildfire risk around 4327 Circle 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 804 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 · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Etheric Networks, GeoLinks.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures