Alameda County property record for 17993 Mayflower Dr, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,321 sqft · built 1954 |
| Lot Size | 0.125 acres (5,450 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $3,663 (2025) |
| Deeds & Mortgages | Aug 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1103-29 |
| Primary APN | 84D-1103-29 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,321 sqft Living Area |
| Year Built | Built 1954 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | L-Shape |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 5,450 sqft (0.125 acres) |
| Lot Dimensions | 105 ft deep x 50 ft wide |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 17993 MAYFLOWER DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-1138 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00001 BLK: 0001 TR: 1376 |
| Legal Tract | 1376 |
| Legal Block | 1 |
| Legal Lot Number | 1 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 430400 |
17993 Mayflower Dr is owner-occupied and held in a trust since December 2015.
Source: Alameda County records, as of August 5, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 17993 MAYFLOWER DR, CASTRO VALLEY, CA 94546-1138 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Dec 4, 2015 |
| Transfer Doc | 0000051159 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 17993 MAYFLOWER DR, CASTRO VALLEY, CA 94546-1138 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIDELITY TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 17993 MAYFLOWER DR, CASTRO VALLEY, CA 94546-1138 |
| Document Number | 0000208939 |
|---|---|
| Date | Aug 25, 2020 |
| Instrument | 2020208939 |
| Name | GENERAL MORTGAGE CAPITAL CORP |
|---|---|
| Type | Mortgage Company |
| Address | BURLINGAME, CA 94010 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Sep 1, 2050 |
The 2025 property tax bill for 17993 Mayflower Dr was $3,663 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 | $241,616 (-0.87%) Land $93,231 Building $155,385 | ||
| 2025 | $3,663.00 Homeowner's exemption | $243,742 Land $91,403 Building $152,339 | |
| 2023 | $3,493.00 Homeowner's exemption | $234,278 Land $87,854 Building $146,424 | $1,249,560 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 17993 Mayflower Dr 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 17993 Mayflower Dr is low, with a 0.03% 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 | 0.03% 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 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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