18138 Lamson Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 18138 Lamson Rd, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,877 sqft · built 1993
Lot Size	0.235 acres (10,233 sqft)
Owner	2 Individual Names on Record
Last Sale	$805,000 (Aug 2008)
Tax Bill	$13,018 (2025)
Deeds & Mortgages	Jan 2022 Line of Credit Jan 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`84D-1173-46`

Property Details

APN / Parcel Number

Primary APN	`84D-1173-46`
Alternative APN	`084D-1173-046-00`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,877 sqft Living Area

Exterior

Year Built	Built 1993
Effective Year Built	Effective 2000
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	10,233 sqft (0.235 acres)
Parking Spaces	3 Parking Spaces

Location & Zoning

Street Address	18138 LAMSON RD
City	CASTRO VALLEY
State	CA
Zip	94546-2120
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00002 BLK: PM: 0200 PAGE: 0077
Legal Subdivision	PARCEL MAP 6220
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1009
Census Tract	430300

Owner

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	18138 LAMSON RD, CASTRO VALLEY, CA 94546-2120
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Jan 19, 2022	Deed of Trust, Mortgage · Line of Credit BANK OF THE WEST
Jan 21, 2021	Deed of Trust, Mortgage · Conventional Mortgage LENDUS LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 20, 2008 · Amount on Record
Deed Sale	Aug 20, 2008 · Amount on Record
Prior Sale	Nov 30, 1994 · Amount on Record
Deed Document Number	2008256709
Prior Transfer Date	Dec 20, 1993
Prior Transfer Doc	0000016190
Record Updated	Oct 29, 2026

January 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18138 LAMSON RD, CASTRO VALLEY, CA 94546-2120
Transaction Type	Mortgage
Record Updated	Feb 9, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18138 LAMSON RD, CASTRO VALLEY, CA 94546-2120

Mortgage

Document Number	0000012564
Date	Jan 19, 2022
Instrument	2022012564

Lender

Name	BANK OF THE WEST
Type	Bank
Address	OMAHA, NE 68154

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2052

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18138 LAMSON RD, CASTRO VALLEY, CA 94546-2120
Transaction Type	Mortgage
Record Updated	Apr 5, 2021
Title Company	LAWYERS TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18138 LAMSON RD, CASTRO VALLEY, CA 94546-2120

Mortgage

Document Number	0000024961
Date	Jan 21, 2021
Instrument	2021024961

Lender

Name	LENDUS LLC
Type	Mortgage Company
Address	ALAMO, CA 94507

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2051

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of August 5, 2026

Property Jurisdictions

Type	Name
State	California
County	Alameda County
Unified School District	Castro Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,050,302 (+1.32%) Land $317,190 Building $740,112
2025	$13,018.00 (+3.82%) Homeowner's exemption	$1,036,574 (+4.04%) Land $310,972 Building $725,602
2023	$12,539.00 Homeowner's exemption	$996,331 Land $298,899 Building $697,432	$1,407,150

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

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.

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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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