18901 Walnut Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 18901 Walnut Rd, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 1,704 sqft · built 1955
Lot Size	0.229 acres (9,984 sqft)
Owner	2 Individual Names on Record
Last Sale	$855,000 (Mar 2019)
Tax Bill	$12,123 (2025)
Deeds & Mortgages	Jun 2026 Sale Jun 2020 Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`84D-1107-45`

Property Details

APN / Parcel Number

Primary APN	`84D-1107-45`
Alternative APN	`084D-1107-045-00`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,704 sqft Living Area

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1980
Architectural Style	Other
Construction Type	Wood
Lot Area	9,984 sqft (0.229 acres)

Location & Zoning

Street Address	18901 WALNUT RD
City	CASTRO VALLEY
State	CA
Zip	94546-2005
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUBD:PROPERTY OF A REMO BUTI
Legal Subdivision	PROPERTY OF A REMO BUTI
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2004
Census Tract	430400

Owner

Source: Alameda County records, as of October 20, 2025

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	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 11, 2026	Deed, Transfer NONE LISTED ON DOCUMENT
Jun 5, 2020	Deed of Trust, Mortgage · Conventional Mortgage TJ FINANCIAL INC
Mar 26, 2019	Grant Deed, Transfer · Conventional Mortgage QUICKEN LNS
Sep 13, 2018	Quit Claim Deed, Transfer YUK L LEE-LAM
Sep 13, 2018	Grant Deed, Construction Loan · Construction Mortgage FJM PRIVATE MORTGAGE FUND LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 26, 2019 · Amount on Record
Deed Sale	Mar 26, 2019 · Amount on Record
Prior Sale	Sep 13, 2018
Deed Document Number	2019053555
Record Updated	Sep 20, 2026

June 2026: Deed, Transfer

Document Type	Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jun 11, 2026
Property Address	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Document Number	0000076915
Instrument Date	Jun 8, 2026
Instrument	202676915
Transaction Type	Transfer
Record Updated	Jul 23, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	15496 HERON DR, SAN LEANDRO, CA 94579-2738

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000129677
Date	Jun 5, 2020
Instrument	2020129677

Lender

Name	TJ FINANCIAL INC
Type	Funding / Finance Company
Address	MONROVIA, CA 91016

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jun 1, 2050

March 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Mar 26, 2019
Property Address	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Document Number	0000053555
Instrument Date	Mar 21, 2019
Instrument	53555
Transaction Type	Transfer
Record Updated	Apr 10, 2019
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$940.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	18901 WALNUT RD CASTRO VALLEY CA 945462005, CASTRO VALLEY, CA 94546-2005

Mortgage

Document Number	53556
Date	Mar 26, 2019
Instrument	53556

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 25, 2049

September 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 13, 2018
Property Address	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Document Number	0000179216
Instrument Date	Sep 10, 2018
Instrument	179216
Transaction Type	Transfer
Record Updated	May 29, 2020
Title Company	FIRST AMERICAN TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	14828 MARTELL AVE SAN LEANDRO CA 945784417, SAN LEANDRO, CA 94578-4417

Mortgage

Document Number	179218
Date	Sep 13, 2018
Instrument	179218

Lender

Name	YUK L LEE-LAM
Address	1786 35TH AVE, SAN FRANCISCO, CA 94122-4112

Agreement

Amount	Amount Recorded

September 2018: Grant Deed, Construction Loan

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 13, 2018
Property Address	18901 WALNUT RD, CASTRO VALLEY, CA 94546-2005
Document Number	0000179215
Map Reference	MB 3 PG 52
Instrument Date	Sep 10, 2018
Instrument	2018179215
Transaction Type	Construction Loan
Record Updated	Aug 19, 2021
Title Company	FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	14828 MARTELL AVE, SAN LEANDRO, CA 94578-4417

Mortgage

Document Number	0000179217
Date	Sep 13, 2018
Instrument	2018179217

Lender

Name	FJM PRIVATE MORTGAGE FUND LLC
Type	Mortgage Company

Agreement

Type	Construction Mortgage
Amount	Amount Recorded

Tax Assessment & Valuation

Source: Alameda County assessment roll, as of July 1, 2025

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
2025	$12,123.00 (+3.82%)	$953,751 (+4.04%) Land $286,125 Building $667,626
2023	$11,677.00	$916,721 Land $275,016 Building $641,705

Assessed value is set for property tax purposes and is not a market price estimate.

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
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

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	0.01% annual chance
Exposure	None beyond ember reach

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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