Alameda County property record for 18865 Walnut Rd, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 2,197 sqft · built 1954 |
| Lot Size | 0.317 acres (13,832 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $1,449,500 (Aug 2021) |
| Tax Bill | $19,031 (2025) |
| Deeds & Mortgages | Aug 2021 Sale & Mortgage May 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1155-25-7 |
| Primary APN | 84D-1155-25-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,197 sqft Living Area |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 13,832 sqft (0.317 acres) |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 18865 WALNUT RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-2003 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | OFFICIAL RECS 25 PG 72 PART OF LOT 14 |
| Legal Subdivision | CASTRO VLY ORCHARDS |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 430300 |
Source: Alameda County records, as of October 20, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Aug 18, 2021 | Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC |
| May 28, 2021 | Deed of Trust, Mortgage · Commercial Mortgage THE MARC J LAMONICA TRUST |
| Sep 25, 2019 | Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 18, 2021 · Amount on Record |
| Deed Sale | Aug 18, 2021 · Amount on Record |
| Deed Document Number | 2021281519 |
| Record Updated | Jun 7, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Aug 18, 2021 |
| Property Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Document Number | 0000281519 |
| Map Reference | MB 25 PG 72 |
| Instrument Date | Aug 13, 2021 |
| Instrument | 2021281519 |
| Transaction Type | Transfer |
| Record Updated | Sep 8, 2021 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,594.45 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Document Number | 0000281520 |
|---|---|
| Date | Aug 18, 2021 |
| Instrument | 2021281520 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Sep 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Transaction Type | Mortgage |
| Record Updated | Jun 16, 2021 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Document Number | 0000200685 |
|---|---|
| Date | May 28, 2021 |
| Instrument | 2021200685 |
| Name | THE MARC J LAMONICA TRUST |
|---|---|
| Type | Non-Lending Institution |
| Address | SANTA ROSA, CA 95403 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18865 WALNUT RD, CASTRO VALLEY, CA 94546-2003 |
| Document Number | 0000240002 |
| Instrument Date | Sep 25, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Dec 30, 2019 |
| Title Company | WFG LENDER SERVICES, WFG LENDER SVCS |
| Name | Verified Name |
|---|---|
| Address | 18865 WALNUT RD CASTRO VALLEY CA 945462003, CASTRO VALLEY, CA 94546-2003 |
| Document Number | 0000240002 |
|---|---|
| Date | Nov 21, 2019 |
| Instrument | 240002 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | TAMPA, FL 33634 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|
Source: Alameda County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Unified School District | Castro Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $19,031.00 (+4.23%) Homeowner's exemption | $1,546,107 (+4.6%) Land $461,335 Building $1,084,772 |
| 2023 | $18,258.00 Homeowner's exemption | $1,478,081 Land $443,424 Building $1,034,657 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 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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