3270 Hertlein Pl, Castro Valley, CA 94546 Property Records

Alameda County property record for 3270 Hertlein Pl, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,363 sqft · built 1998
Lot Size	0.14 acres (6,081 sqft)
Owner	Individual Name on File
Last Sale	$1,120,000 (May 2020)
Tax Bill	$13,254 (2025)
Deeds & Mortgages	Feb 2022 Mortgage Feb 2021 Mortgage + 2 more
Flood Zone	Zone X (moderate risk)
APN	`84B-510-26`

Property Details

APN / Parcel Number

Primary APN	`84B-510-26`
Alternative APN	`084B-0510-026-00`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,363 sqft Living Area

Exterior

Year Built	Built 1998
Effective Year Built	Effective 1998
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	6,081 sqft (0.14 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	3270 HERTLEIN PL
City	CASTRO VALLEY
State	CA
Zip	94546-2900
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00002 BLK: TR: 5100
Legal Subdivision	TRACT 5100
Legal Tract	5100
Legal Lot Number	2
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4000
Census Tract	430600

Owner

3270 Hertlein Pl is owned and occupied by an individual who bought it in May 2020.

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

Owner of Record	Individual Name on File
Mailing Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900
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

Date	Document
Feb 4, 2022	Deed of Trust, Mortgage · VA Mortgage UNITED WHOLESALE MORTGAGE
Feb 4, 2021	Deed of Trust, Mortgage · VA Mortgage QUICKEN LOANS LLC
May 22, 2020	Grant Deed, Transfer · VA Mortgage BAY EQUITY
Jan 31, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 22, 2020 · Amount on File
Deed Sale	May 22, 2020 · Amount on File
Prior Sale	Sep 30, 2002 · Amount on File
Deed Document Number	2020119150
Prior Transfer Date	Jan 29, 2018
Prior Transfer Doc	0000018942
Record Updated	Oct 29, 2026

February 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900
Transaction Type	Mortgage
Record Updated	Feb 24, 2022
Title Company	E-CHICAGO TITLE, CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900

Mortgage

Document Number	0000027369
Date	Feb 4, 2022
Instrument	2022027369

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2052

February 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900
Transaction Type	Mortgage
Record Updated	Mar 24, 2021
Title Company	E-CHICAGO TITLE, CHICAGO TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900

Mortgage

Document Number	0000049736
Date	Feb 4, 2021
Instrument	2021049736

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	360 Months
Due	Feb 1, 2051

May 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	May 22, 2020
Property Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900
Document Number	0000119150
Instrument Date	May 20, 2020
Instrument	119150
Transaction Type	Transfer
Record Updated	Jul 9, 2020
Title Company	CHICAGO TITLE COMPANY, CHICAGO TITLE CO

Transaction

Amount	Amount on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,232.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3270 HERTLEIN PL CASTRO VALLEY CA 945462900, CASTRO VALLEY, CA 94546-2900

Mortgage

Document Number	119151
Date	May 22, 2020
Instrument	119151

Lender

Name	BAY EQUITY
Type	Funding / Finance Company
Address	CORTE MADERA, CA 94925

Agreement

Type	VA Mortgage
Amount	Amount on Record
Term	360 Months
Due	May 21, 2050

January 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jan 31, 2018
Property Address	3270 HERTLEIN PL, CASTRO VALLEY, CA 94546-2900
Document Number	0000018942
Instrument Date	Jan 29, 2018
Instrument	18942
Transaction Type	Transfer
Record Updated	Feb 14, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	3270 HERTLEIN PL CASTRO VALLEY CA 945462900, CASTRO VALLEY, CA 94546-2900

Tax Assessment & Valuation

The 2025 property tax bill for 3270 Hertlein Pl was $13,254.

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		$1,068,689 (-12.75%) Land $374,808 Building $874,552
2025	$13,254.00	$1,224,864 Land $367,459 Building $857,405
2023	$12,858.00	$1,177,310 Land $353,193 Building $824,117	$1,204,200

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

Flood

FEMA maps place 3270 Hertlein Pl in Zone X, an area of moderate 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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
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 3270 Hertlein Pl is low, with 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 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 769 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
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Unwired, Verizon.

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