21898 Ada St, Hayward (Castro Valley), CA 94546 Property Records

Alameda County property record for 21898 Ada St, Hayward, CA 94546

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 906 sqft · built 1948
Lot Size	0.116 acres (5,040 sqft)
Owner	Company Name on Record
Last Sale	$283,000 (Feb 2010)
Tax Bill	$5,326 (2025)
Deeds & Mortgages	Oct 2021 Mortgage Jun 2019 Mortgage + 1 more
Flood Zone	Zone X (moderate risk)
APN	`415-90-87`

Property Details

APN / Parcel Number

Primary APN	`415-90-87`
Alternative APN	`415-0090-087-00`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	906 sqft Living Area
1st Floor Area	906 sqft

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Architectural Style	L-Shape
Construction Type	Wood
Lot Area	5,040 sqft (0.116 acres)
Parking Spaces	1 Parking Space

Location & Zoning

Street Address	21898 ADA ST
City	CASTRO VALLEY
State	CA
Zip	94546-6304
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT: 00012 BLK: 0001 TR: 0871
Legal Tract	0871
Legal Block	1
Legal Lot Number	12
Jurisdiction	ALAMEDA CA
Township / Civil Division	HAYWARD
Census Block Group	1
Census Block	1003
Census Tract	431200

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	20661 MARSHALL ST, CASTRO VALLEY, CA 94546-4628
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 27, 2021	Deed of Trust, Mortgage · Conventional Mortgage INTELLILOAN INC
Jun 20, 2019	Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA
Feb 28, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Feb 10, 2010 · Amount on Record
Deed Sale	Feb 10, 2010 · Amount on Record
Deed Document Number	201039324
Last Transfer Date	Feb 13, 2018
Transfer Doc	0000041354
Record Updated	Oct 29, 2026

October 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	21898 ADA ST, HAYWARD, CA 94546-6304
Transaction Type	Mortgage
Record Updated	Nov 16, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20661 MARSHALL ST, CASTRO VALLEY, CA 94546-4628

Mortgage

Document Number	0000354303
Date	Oct 27, 2021
Instrument	2021354303

Lender

Name	INTELLILOAN INC
Type	Mortgage Company
Address	SANTA ANA, CA 92799

Agreement

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

June 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	ALAMEDA CA
Property Address	21898 ADA ST, HAYWARD, CA 94546-6304
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	AMROCK TITLE CALIFORNIA INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000116929
Date	Jun 20, 2019
Instrument	2019116929

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	COLUMBUS, OH 43240

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2049

February 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	ALAMEDA CA
Recording Date	Feb 28, 2018
Property Address	21898 ADA ST, HAYWARD, CA 94546-6304
Document Number	0000041354
Instrument Date	Feb 13, 2018
Instrument	41354
Transaction Type	Transfer
Record Updated	Mar 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	Living Trust
Address	20661 MARSHALL ST CASTRO VALLEY CA 945464628, CASTRO VALLEY, CA 94546-4628

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	Hayward Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$372,580 (+2%) Land $111,774 Building $260,806
2025	$5,326.00 (+4.7%)	$365,275 (+4.04%) Land $109,582 Building $255,693
2023	$5,087.00	$351,094 Land $105,328 Building $245,766	$610,200

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 15 policies
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	15 in force
Nearby Flood Claims	1 (1996)
Most Recent Claim	Dec 1996 · 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 744 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
Unwired Fixed Wireless	300 / 25
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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