Alameda County property record for 18030 Lamson Rd, Castro Valley, CA 94546
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2.5 ba · 1,927 sqft · built 1959 |
| Lot Size | 0.129 acres (5,600 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $237,000 (Aug 1994) |
| Tax Bill | $5,484 (2025) |
| Deeds & Mortgages | Jun 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 84D-1205-39 |
| Primary APN | 84D-1205-39 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,927 sqft Living Area |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 5,600 sqft (0.129 acres) |
| Street Address | 18030 LAMSON RD |
|---|---|
| City | CASTRO VALLEY |
| State | CA |
| Zip | 94546-1313 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00009 BLK: 000B TR: 1877 |
| Legal Subdivision | TRACT 1877 |
| Legal Tract | 1877 |
| Legal Block | B |
| Legal Lot Number | 9 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | HAYWARD |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 430300 |
Source: Alameda County records, as of August 5, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 18030 LAMSON RD, CASTRO VALLEY, CA 94546-1313 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 3, 1994 · Amount on Record |
| Deed Sale | Aug 3, 1994 · Amount on Record |
| Deed Document Number | 1994269724 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | ALAMEDA CA |
| Property Address | 18030 LAMSON RD, CASTRO VALLEY, CA 94546-1313 |
| Transaction Type | Mortgage |
| Record Updated | Jun 21, 2021 |
| Title Company | CORNERSTONE TITLE |
| Name | Verified Name |
|---|---|
| Address | 18030 LAMSON RD, CASTRO VALLEY, CA 94546-1313 |
| Document Number | 0000204658 |
|---|---|
| Date | Jun 3, 2021 |
| Instrument | 2021204658 |
| Name | GUARANTEED RATE AFFINITY LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 1, 2051 |
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 | $399,027 (+0.24%) Land $121,808 Building $284,219 | ||
| 2025 | $5,484.00 (+4.38%) Homeowner's exemption | $398,067 (+4.04%) Land $119,420 Building $278,647 | |
| 2023 | $5,254.00 Homeowner's exemption | $382,611 Land $114,783 Building $267,828 | $1,053,270 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 67% of the US · lower than 81% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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 666 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 in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, T-Mobile, Unwired.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures