21071 Ashfield Ave, Castro Valley, CA 94546 Property Records

Alameda County property record for 21071 Ashfield Ave, Castro Valley, CA 94546

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,314 sqft · built 1956
Lot Size	0.122 acres (5,300 sqft)
Owner	Company Name on Record
Last Sale	$735,000 (Sep 2017)
Tax Bill	$10,655 (2025)
Deeds & Mortgages	Nov 2020 Mortgage Dec 2018 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`84A-40-51`

Property Details

APN / Parcel Number

Primary APN	`84A-40-51`
Alternative APN	`084A-0040-051-00`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,314 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1956
Effective Year Built	Effective 1957
Architectural Style	L-Shape
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Composition Shingle
Lot Area	5,300 sqft (0.122 acres)
Lot Dimensions	100 ft deep x 53 ft wide

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	21071 ASHFIELD AVE
City	CASTRO VALLEY
State	CA
Zip	94546-5803
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00003 BLK: 000A TR: 1604
Legal Tract	1604
Legal Block	A
Legal Lot Number	3
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	2
Census Block	2000
Census Tract	431000

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	Company Name on Record
Mailing Address	3878 BROOKDALE BLVD, CASTRO VALLEY, CA 94546-2016
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Nov 18, 2020	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
Dec 21, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Dec 21, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Sep 1, 2017	Grant Deed, Transfer · ARM WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 1, 2017 · Amount on Record
Deed Sale	Sep 1, 2017 · Amount on Record
Prior Sale	Sep 12, 2011 · Amount on Record
Deed Document Number	2017192930
Last Transfer Date	Dec 21, 2018
Transfer Doc	0000241863
Record Updated	Oct 29, 2026

November 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	SOLIDIFI TITLE & CLOSING

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803

Mortgage

Document Number	0000315155
Date	Nov 18, 2020
Instrument	2020315155

Lender

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

Agreement

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

December 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 21, 2018
Property Address	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803
Document Number	0000241862
Instrument Date	Dec 21, 2018
Instrument	241862
Transaction Type	Transfer
Record Updated	Jan 14, 2019
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	Community Property
Address	21071 ASHFIELD AVE CASTRO VALLEY CA 945465803, CASTRO VALLEY, CA 94546-5803

December 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Dec 21, 2018
Property Address	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803
Document Number	0000241863
Instrument Date	Dec 21, 2018
Instrument	241863
Transaction Type	Transfer
Record Updated	Jan 14, 2019
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	Revocable Trust
Address	21071 ASHFIELD AVE CASTRO VALLEY CA 945465803, CASTRO VALLEY, CA 94546-5803

September 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	ALAMEDA CA
Recording Date	Sep 1, 2017
Property Address	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803
Document Number	0000192930
Map Reference	MB37 PG1
Instrument Date	Aug 28, 2017
Instrument	2017192930
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	21071 ASHFIELD AVE, CASTRO VALLEY, CA 94546-5803

Mortgage

Document Number	0000192931
Date	Sep 1, 2017
Instrument	2017192931

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.25%
Adjustable	Adjustable Rate Rider
Type Change Date	Oct 1, 2027
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	5.25%
Index	1-Year LIBOR
Max Rate	8.25%

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		$846,011 (+1.16%) Land $255,903 Building $597,108
2025	$10,655.00 (+3.91%) Homeowner's exemption	$836,290 (+4.04%) Land $250,887 Building $585,403
2023	$10,254.00 Homeowner's exemption	$803,817 Land $241,145 Building $562,672	$898,200

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
Flood Insurance Cost	Premium on Record median of 10 policies
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	10 in force
Nearby Flood Claims	2 (2023–2025)
Most Recent Claim	Dec 2025 · rainfall accumulation

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	Not rated no burnable land within 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 499 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, DSL 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, Unwired.

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