17938 Lamson Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 17938 Lamson Rd, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,088 sqft · built 1958
Lot Size	0.155 acres (6,750 sqft)
Owner	2 Individual Names on File
Last Sale	$905,000 (Sep 2017)
Tax Bill	$13,004 (2025)
Deeds & Mortgages	Nov 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`84D-1206-24`

Property Details

APN / Parcel Number

Primary APN	`84D-1206-24`
Alternative APN	`084D-1206-024-00`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,088 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1968
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	6,750 sqft (0.155 acres)
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	17938 LAMSON RD
City	CASTRO VALLEY
State	CA
Zip	94546-1311
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	LOT: 00004 BLK: 000F TR: 1877
Legal Subdivision	EDEN TOWNSHIP
Legal Tract	1877
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	3
Census Block	3002
Census Tract	430300

Owner

17938 Lamson Rd is owned and occupied by two individuals who acquired it in October 2020.

Source: Alameda County records, as of October 13, 2026

Owner of Record	2 Individual Names on File
Mailing Address	3626 E CASSIA LN, GILBERT, AZ 85298-2216
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 15, 2017 · Amount on File
Deed Sale	Sep 15, 2017 · Amount on File
Deed Document Number	2017202320
Last Transfer Date	Oct 29, 2020
Transfer Doc	0000300146
Record Updated	Oct 29, 2026

November 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Nov 6, 2020
Property Address	17938 LAMSON RD, CASTRO VALLEY, CA 94546-1311
Document Number	0000300146
Map Reference	MB 38 PG 32&33
Instrument Date	Oct 29, 2020
Instrument	2020300146
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	17938 LAMSON RD, CASTRO VALLEY, CA 94546-1311

Mortgage

Document Number	0000300147
Date	Nov 6, 2020
Instrument	2020300147

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Dec 1, 2050

Tax Assessment & Valuation

The 2025 property tax bill for 17938 Lamson Rd was $13,004 with a homeowner's exemption.

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		$1,049,109 (+1.32%) Land $315,092 Building $741,017
2025	$13,004.00 Homeowner's exemption	$1,035,406 Land $308,915 Building $726,491
2023	$12,526.00 Homeowner's exemption	$995,202 Land $296,920 Building $698,282	$1,180,710

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

Flood

FEMA maps place 17938 Lamson Rd in Zone X, an area of minimal flood risk.

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

Wildfire risk around 17938 Lamson Rd is low, with a 0.06% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 62% of the US · lower than 77% of California
Wildfire Likelihood	0.06% 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 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.

Nearby Properties on Lamson Rd

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures