4183 Berdina Rd, Castro Valley, CA 94546 Property Records

Alameda County property record for 4183 Berdina Rd, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,430 sqft · built 1940
Lot Size	0.238 acres (10,375 sqft)
Owner	Trust Name on File
Last Sale	$555,000 (Dec 2004)
Tax Bill	$4,242 (2025)
Deeds & Mortgages	Oct 2020 Mortgage Oct 2020 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`84C-758-8`

Property Details

APN / Parcel Number

Primary APN	`84C-758-8`
Alternative APN	`084C-0758-008-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,430 sqft Living Area

Exterior

Year Built	Built 1940
Effective Year Built	Effective 1940
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	10,375 sqft (0.238 acres)
Garage Type	Carport
Carport	Carport
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	4183 BERDINA RD
City	CASTRO VALLEY
State	CA
Zip	94546-3536
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00015 BLK: TR: 0542
Legal Subdivision	542 EDEN TOWNSHIP
Legal Tract	0542
Legal Lot Number	15
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4002
Census Tract	430800

Owner

4183 Berdina Rd is owner-occupied and held in a trust since October 2020.

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

Owner of Record	Trust Name on File
Mailing Address	4183 BERDINA RD, CASTRO VALLEY, CA 94546-3536
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

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
Oct 27, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage PLATINUM HOME MORTGAGE CORP
Oct 27, 2020	Quit Claim Deed, Transfer CHICAGO TITLE COMPANY, CHICAGO TITLE CO
Aug 15, 2018	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Dec 16, 2004 · Amount on File
Deed Sale	Dec 16, 2004 · Amount on File
Deed Document Number	2004556217
Last Transfer Date	Oct 19, 2020
Transfer Doc	0000286405
Record Updated	Oct 29, 2026

October 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Oct 27, 2020
Property Address	4183 BERDINA RD, CASTRO VALLEY, CA 94546-3536
Document Number	0000286403
Map Reference	MB 29 PG 43
Instrument Date	Oct 19, 2020
Instrument	2020286403
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	CHICAGO TITLE COMPANY

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	4183 BERDINA RD, CASTRO VALLEY, CA 94546-3536

Mortgage

Document Number	0000286404
Date	Oct 27, 2020
Instrument	2020286404

Lender

Name	PLATINUM HOME MORTGAGE CORP
Type	Mortgage Company

Agreement

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

October 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Oct 27, 2020
Property Address	4183 BERDINA RD, CASTRO VALLEY, CA 94546-3536
Document Number	0000286405
Instrument Date	Oct 19, 2020
Instrument	286405
Transaction Type	Transfer
Record Updated	Jan 22, 2021
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	4183 BERDINA RD CASTRO VALLEY CA 945463536, CASTRO VALLEY, CA 94546-3536

August 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Aug 15, 2018
Property Address	4183 BERDINA RD, CASTRO VALLEY, CA 94546-3536
Document Number	0000160251
Instrument Date	Aug 2, 2018
Instrument	160251
Transaction Type	Transfer
Record Updated	Sep 3, 2018

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	4183 BERDINA RD CASTRO VALLEY CA 945463536, CASTRO VALLEY, CA 94546-3536

Tax Assessment & Valuation

The 2025 property tax bill for 4183 Berdina Rd was $4,242 with a homeowner's exemption, up 2.6% from the year before.

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		$291,683 (+2.05%) Land $87,845 Building $210,838
2025	$4,242.00 (+2.56%) Homeowner's exemption	$285,827 Land $86,122 Building $206,705
2024	$4,136.00 (+2.05%)
2023	$4,053.00 Homeowner's exemption	$281,458 Land $82,779 Building $198,679	$780,120

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

Flood

FEMA maps place 4183 Berdina Rd in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

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
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
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 4183 Berdina Rd is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 93% of the US · lower than 96% of California
Wildfire Likelihood	Under 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 704 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 · Fixed Wireless in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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