17915 Lamson Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 17915 Lamson Rd, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,113 sqft · built 1958
Lot Size	0.372 acres (16,188 sqft)
Owner	2 Individual Names on File
Last Sale	$1,500,000 (Sep 2025)
Tax Bill	$7,097 (2025)
Deeds & Mortgages	Jan 2023 Line of Credit Sep 2025 Sale & Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`84D-1205-1-2`

Property Details

APN / Parcel Number

Primary APN	`84D-1205-1-2`
Alternative APN	`084D-1205-001-02`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,113 sqft Living Area

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1959
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	16,188 sqft (0.372 acres)

Utilities, Heating & Cooling

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

Location & Zoning

Street Address	17915 LAMSON RD
City	CASTRO VALLEY
State	CA
Zip	94546-1310
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	LOT: 00012 BLK: 000E TR: 1877
Legal Subdivision	TRACT 1877
Legal Tract	1877
Legal Block	E
Legal Lot Number	12
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	3
Census Block	3003
Census Tract	430300

Owner

17915 Lamson Rd is owned and occupied by two individuals who bought it in September 2025.

Source: Alameda County records, as of August 5, 2026

Owner of Record	2 Individual Names on File
Mailing Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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

Date	Document
Jan 30, 2023	Deed of Trust, Mortgage · Line of Credit FREMONT BANK
Sep 8, 2025	Grant Deed, Transfer · Conventional Mortgage AMERIHOME MORTGAGE COMPANY LLC
Jul 20, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage AMERICAN PACIFIC MORTGAGE CORP
Jul 20, 2021	Intrafamily Transfer, Transfer FIDELITY NATIONAL TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 8, 2025 · Amount on File
Deed Sale	Sep 8, 2025 · Amount on File
Deed Document Number	2025112512
Prior Transfer Date	Jul 12, 2021
Prior Transfer Doc	0000252335
Record Updated	Oct 29, 2026

January 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310
Transaction Type	Mortgage
Record Updated	Oct 2, 2025
Title Company	MEMBERS TITLE COMPANY/CA INC, MEMBERS TITLE OF CA INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310

Mortgage

Document Number	0000009100
Date	Jan 30, 2023
Instrument	2023009100

Lender

Name	FREMONT BANK
Type	Bank
Address	LIVERMORE, CA 94551

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	300 Months
Due	Jan 20, 2048

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 8, 2025
Property Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310
Document Number	0000112512
Map Reference	MB 38 PG 32 & 33
Instrument Date	Aug 22, 2025
Instrument	2025112512
Transaction Type	Transfer
Record Updated	Oct 2, 2025
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,650.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Right of Survivorship
Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310

Mortgage

Document Number	0000112513
Date	Sep 8, 2025
Instrument	2025112513

Lender

Name	AMERIHOME MORTGAGE COMPANY LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Oct 1, 2055

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jul 20, 2021
Property Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310
Document Number	0000252335
Map Reference	MB 38 PG 32&33
Instrument Date	Jul 12, 2021
Instrument	2021252335
Transaction Type	Transfer
Record Updated	Aug 5, 2021
Title Company	FIDELITY NATIONAL TITLE CO

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	Community Property with Right of Survivorship
Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310

Mortgage

Document Number	0000252336
Date	Jul 20, 2021
Instrument	2021252336

Lender

Name	AMERICAN PACIFIC MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2051

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jul 20, 2021
Property Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310
Document Number	0000252337
Map Reference	MB 38 PG 32&33
Instrument Date	Jul 12, 2021
Instrument	2021252337
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	FIDELITY NATIONAL TITLE CO

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	Living Trust
Address	17915 LAMSON RD, CASTRO VALLEY, CA 94546-1310

Tax Assessment & Valuation

The 2025 property tax bill for 17915 Lamson Rd was $7,097.

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		$1,493,000 (+179.17%) Land $450,000 Building $1,050,000
2025	$7,097.00 Homeowner's exemption	$534,805 Land $206,416 Building $328,389
2023	$6,814.00 Homeowner's exemption	$514,039 Land $198,401 Building $315,638	$1,188,540

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 17915 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 17915 Lamson Rd is moderate, ranking above 46% of the US, with a 0.1% 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	0.1% 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.

Cell Coverage

5G (outdoors only) and 4G LTE

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