3937 Forest Cir, Castro Valley, CA 94546 Property Records

Alameda County property record for 3937 Forest Cir, Castro Valley, CA 94546

Property Summary

Property Type	Townhouse
Details	3 bd · 3.5 ba · 1,551 sqft · built 2009
Lot Size	0.034 acres (1,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$870,000 (Apr 2026)
Tax Bill	$12,640 (2025)
Deeds & Mortgages	Apr 2026 Sale & Mortgage Apr 2022 Sale & Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`84C-1071-21`

Property Details

APN / Parcel Number

Primary APN	`84C-1071-21`
Alternative APN	`084C-1071-021-00`

Interior

Bedrooms	3 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Total Rooms	5 Rooms
Stories	3 Stories
Building Area	1,551 sqft Living Area

Exterior

Year Built	Built 2009
Effective Year Built	Effective 2009
Architectural Style	Custom Design
Construction Type	Wood
Lot Area	1,500 sqft (0.034 acres)
Parking Spaces	2 Parking Spaces

Location & Zoning

Street Address	3937 FOREST CIR
City	CASTRO VALLEY
State	CA
Zip	94546-4594
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Townhouse
Legal Description	LOT: 00018 BLK: TR: 7709
Legal Subdivision	TRACT NO 7709
Legal Tract	7709
Legal Lot Number	18
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	4
Census Block	4001
Census Tract	430800

Owner

Source: Alameda County records, as of September 22, 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	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Apr 20, 2026	Grant Deed, Transfer · Conventional Mortgage US BANK
Apr 18, 2022	Grant Deed, Transfer · Conventional Mortgage EAST STAR MORTGAGE
May 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP
Jan 20, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage STEARNS LENDING LLC
Jul 28, 2017	Grant Deed, Transfer · Conventional Mortgage GENERAL MORTGAGE CAPITAL CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 20, 2026 · Amount on Record
Deed Sale	Apr 20, 2026 · Amount on Record
Prior Sale	Apr 18, 2022 · Amount on Record
Deed Document Number	202651177
Prior Transfer Date	Jan 11, 2021
Prior Transfer Doc	0000022934
Record Updated	Oct 29, 2026

April 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 20, 2026
Property Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Document Number	0000051177
Instrument Date	Mar 30, 2026
Instrument	202651177
Transaction Type	Transfer
Record Updated	Jul 6, 2026
Title Company	REPUBLIC TITLE COMPANY, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$96,657.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594

Mortgage

Document Number	0000051178,
Date	Apr 20, 2026
Instrument	202651178

Lender

Name	US BANK

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 1, 2056

Interest

Rate Type	Fixed Rate
Rate	6%
Initial Type	Fixed Rate
Max Rate	-1%

April 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Apr 18, 2022
Property Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Document Number	0000076646
Map Reference	MB 301 PG 70
Instrument Date	Apr 11, 2022
Instrument	2022076646
Transaction Type	Transfer
Record Updated	May 12, 2022
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATIONAL TITLE INS CO

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	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594

Mortgage

Document Number	0000076647
Date	Apr 18, 2022
Instrument	2022076647

Lender

Name	EAST STAR MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2052

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000116345
Date	May 20, 2020
Instrument	2020116345

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company
Address	BURLINGAME, CA 94010

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2050

January 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	ALAMEDA CA
Recording Date	Jan 20, 2021
Property Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Document Number	0000022934
Map Reference	MB 301 PG 70
Instrument Date	Jan 11, 2021
Instrument	2021022934
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	WFG NATIONAL TITLE INS 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	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594

Mortgage

Document Number	0000022935
Date	Jan 20, 2021
Instrument	2021022935

Lender

Name	STEARNS LENDING LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2051

July 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Jul 28, 2017
Property Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594
Document Number	0000164997
Map Reference	MB301 PG70
Instrument Date	Jul 21, 2017
Instrument	2017164997
Transaction Type	Transfer
Record Updated	Aug 19, 2021
Title Company	OLD REPUBLIC 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
Relationship	Joint Tenants
Address	3937 FOREST CIR, CASTRO VALLEY, CA 94546-4594

Mortgage

Document Number	0000164998
Date	Jul 28, 2017
Instrument	2017164998

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2047

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		$875,000 (-12.28%) Land $262,500 Building $612,500
2025	$12,640.00 (+2.22%)	$997,527 (+4.04%) Land $299,258 Building $698,269
2024	$12,365.00 (+1.54%)
2023	$12,177.00	$958,800 Land $287,640 Building $671,160	$885,960

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	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

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

Wildfire Risk	Low lower than 94% 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 777 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
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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