Alameda County property record for 17748 Knight Dr, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,973 sqft · built 1984 |
| Lot Size | 0.226 acres (9,830 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $795,000 (Feb 2011) |
| Tax Bill | $12,887 (2025) |
| Deeds & Mortgages | Dec 2025 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1145-11 |
| Primary APN | 84D-1145-11 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,973 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Custom Design |
| Exterior Material | Stucco |
| Construction Type | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 9,830 sqft (0.226 acres) |
| Parking Spaces | 3 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 17748 KNIGHT DR |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-1214 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | LOT: 00008 BLK: TR: 3917 |
| Legal Subdivision | TR 3917 |
| Legal Tract | 3917 |
| Legal Lot Number | 8 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 430400 |
17748 Knight Dr is held in a trust since February 2011.
Source: Alameda County records, as of August 26, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3847 MELISSA LN, CASTRO VALLEY, CA 94546-1253 |
| Owner Type | Company |
| Vesting | Trust, Revocable 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 | 2 Names on Deed |
|---|---|
| Last Sale | Feb 4, 2011 · Amount on File |
| Deed Sale | Feb 4, 2011 · Amount on File |
| Prior Sale | Apr 21, 1998 · Amount on File |
| Deed Document Number | 201149559 |
| Prior Transfer Date | Sep 23, 1993 |
| Prior Transfer Doc | 0000355513 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Recording Date | Dec 29, 2025 |
| Property Address | 17748 KNIGHT DR, CASTRO VALLEY, CA 94546-1214 |
| Document Number | 0000166213 |
| Map Reference | MB 134 PG 5 |
| Instrument Date | Nov 9, 2025 |
| Instrument | 2025166213 |
| Transaction Type | Transfer |
| Record Updated | Feb 5, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3847 MELISSA LN, CASTRO VALLEY, CA 94546-1253 |
The 2025 property tax bill for 17748 Knight Dr was $12,887.
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 | $1,038,841 (+2%) Land $311,652 Building $727,189 | ||
| 2025 | $12,887.00 | $1,018,474 Land $305,542 Building $712,932 | |
| 2023 | $12,416.00 | $978,938 Land $293,681 Building $685,257 | $1,558,530 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 17748 Knight Dr 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 17748 Knight Dr is moderate, ranking above 46% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 46% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.09% 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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