18926 Patton Dr, Castro Valley, CA 94546 Property Records

Alameda County property record for 18926 Patton Dr, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	4 bd · 4 ba · 1,601 sqft · built 1949
Lot Size	0.131 acres (5,720 sqft)
Owner	2 Individual Names on Record
Last Sale	$950,000 (Nov 2020)
Tax Bill	$13,003 (2025)
Deeds & Mortgages	Nov 2020 Transfer Nov 2020 Sale + 2 more
Flood Zone	Zone X (minimal risk)
APN	`84D-1351-4`

Property Details

APN / Parcel Number

Primary APN	`84D-1351-4`
Alternative APN	`084D-1351-004-00`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,601 sqft Living Area

Exterior

Year Built	Built 1949
Effective Year Built	Effective 1980
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,720 sqft (0.131 acres)

Location & Zoning

Street Address	18926 PATTON DR
City	CASTRO VALLEY
State	CA
Zip	94546-3135
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00004 BLK: AR: 084D PAGE: 1351
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2001
Census Tract	430700

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	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Nov 2, 2020	Quit Claim Deed, Transfer NORTH AMERICAN TITLE
Nov 2, 2020	Grant Deed, Transfer NORTH AMERICAN TITLE CO INC
Jul 18, 2018	Quit Claim Deed, Transfer OTHER
Jun 14, 2017	Grant Deed, Transfer OLD REPUBLIC TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 2, 2020 · Amount on Record
Deed Sale	Nov 2, 2020 · Amount on Record
Prior Sale	Jun 14, 2017 · Amount on Record
Deed Document Number	2020292310
Prior Transfer Date	Oct 26, 2020
Prior Transfer Doc	0000292311
Record Updated	Oct 29, 2026

November 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Nov 2, 2020
Property Address	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135
Document Number	0000292311
Instrument Date	Oct 26, 2020
Instrument	292311
Transaction Type	Transfer
Record Updated	Jan 22, 2021
Title Company	NORTH 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	18926 PATTON DR CASTRO VALLEY CA 945463135, CASTRO VALLEY, CA 94546-3135

November 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Nov 2, 2020
Property Address	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135
Document Number	0000292310
Instrument Date	Oct 21, 2020
Instrument	2020292310
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	NORTH AMERICAN TITLE CO INC

Transaction

Amount	Amount Recorded
Tax	$1,045.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135

July 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jul 18, 2018
Property Address	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135
Document Number	0000141090
Instrument Date	Jul 2, 2018
Instrument	141090
Transaction Type	Transfer
Record Updated	Aug 7, 2018
Title Company	OTHER

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	18926 PATTON DR CASTRO VALLEY CA 945463135, CASTRO VALLEY, CA 94546-3135

June 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jun 14, 2017
Property Address	18926 PATTON DR, CASTRO VALLEY, CA 94546-3135
Document Number	0000129314
Instrument Date	Jun 9, 2017
Instrument	129314
Transaction Type	Transfer
Record Updated	Jul 7, 2017
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Tax	$660.00
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	18926 PATTON DR CASTRO VALLEY CA 945463135, CASTRO VALLEY, CA 94546-3135

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		$1,048,856 (+2%) Land $314,657 Building $734,199
2025	$13,003.00 (+3.79%)	$1,028,298 (+4.04%) Land $308,489 Building $719,809
2023	$12,528.00	$988,380 Land $296,514 Building $691,866	$1,042,290

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	5 in force
Nearby Flood Claims	1 (1998)
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding

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 938 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 · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Etheric Networks Fixed Wireless	250 / 100

May also be available: GeoLinks, T-Mobile, Unwired, Verizon.

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