Alameda County property record for 4156 Krolop Rd, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3.5 ba · 2,620 sqft · built 1951 |
| Lot Size | 0.272 acres (11,840 sqft) |
| Owner | Trust Name on File |
| Last Sale | $274,000 (Dec 1998) |
| Tax Bill | $9,200 (2025) |
| Deeds & Mortgages | Mar 2022 Mortgage Jul 2021 Transfer + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1140-4-3 |
| Primary APN | 84D-1140-4-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,620 sqft Living Area |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 11,840 sqft (0.272 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Street Address | 4156 KROLOP RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-1220 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00002 BLK: 0004 AR: 084D PAGE: 1140 ;LOT: 00003 BLK: 0004 AR: 084D PAGE: 1140 |
| Legal Subdivision | CASTRO VLY ORCHARDS |
| Legal Lot Number | 7 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 430400 |
4156 Krolop Rd is owner-occupied and held in a trust since June 2021.
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Mar 29, 2022 | Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA |
| Jul 15, 2021 | Intrafamily Transfer, Transfer |
| Sep 9, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage OPTIMUM FIRST INC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 22, 1998 · Amount on File |
| Deed Sale | Dec 22, 1998 · Amount on File |
| Deed Document Number | 1998448400 |
| Last Transfer Date | Jun 13, 2021 |
| Transfer Doc | 0000247132 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Transaction Type | Mortgage |
| Record Updated | Apr 18, 2022 |
| Title Company | WFT NATIONAL TITLE, WFG NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Document Number | 0000063690 |
|---|---|
| Date | Mar 29, 2022 |
| Instrument | 2022063690 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2052 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Jul 15, 2021 |
| Property Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Document Number | 0000247132 |
| Map Reference | MB 25 PG 72 |
| Instrument Date | Jun 13, 2021 |
| Instrument | 2021247132 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 4156 KROLOP RD, 4156, CASTRO VALLEY, CA 94546-1220 |
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Sep 9, 2020 |
| Property Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Document Number | 0000226907 |
| Map Reference | MB 25 PG 72 |
| Instrument Date | Aug 31, 2020 |
| Instrument | 2020226907 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | WFG TITLE COMPANY OF CA |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 4156 KROLOP RD, CASTRO VALLEY, CA 94546-1220 |
| Document Number | 0000226908 |
|---|---|
| Date | Sep 9, 2020 |
| Instrument | 2020226908 |
| Name | OPTIMUM FIRST INC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 180 Months |
| Due | Sep 1, 2035 |
The 2025 property tax bill for 4156 Krolop Rd was $9,200 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 | $722,568 (+1.02%) Land $131,435 Building $598,133 | ||
| 2025 | $9,200.00 Homeowner's exemption | $715,264 Land $128,858 Building $586,406 | |
| 2023 | $8,846.00 Homeowner's exemption | $687,495 Land $123,855 Building $563,640 | $1,079,550 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4156 Krolop Rd in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 1982.
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 |
| Nearby Flood Claims | 2 (1982–2022) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 4156 Krolop Rd is moderate, ranking above 57% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 57% of the US · lower than 65% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 312 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks, GeoLinks, Sonic Telecom, Unwired.
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