21031 Granite Wells Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 21031 Granite Wells Dr, Walnut, CA 91789

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,623 sqft · built 1988
Lot Size	0.373 acres (16,257 sqft)
Owner	2 Company Names on Record
Tax Bill	$9,573 (2025)
Deeds & Mortgages	Oct 2021 Mortgage
Flood Zone	Zone D (undetermined)
APN	`8710-021-034`

Property Details

APN / Parcel Number

Primary APN	`8710-021-034`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Building Area	2,623 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Construction Type	Wood
Lot Area	16,257 sqft (0.373 acres)
Lot Dimensions	271 ft deep x 65 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	21031 GRANITE WELLS DR
City	WALNUT
State	CA
Zip	91789-1361
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	WASP1*
Legal Description	TR=44019 LOT 55
Legal Subdivision	44019
Legal Tract	44019
Legal Block	1
Legal Lot Number	55
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1020
Census Tract	403409

Owner

Source: Los Angeles County records, as of August 25, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Company Names on Record
Mailing Address	21031 GRANITE WELLS DR, WALNUT, CA 91789-1361
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Oct 22, 2021
Transfer Doc	0001624901
Record Updated	Oct 29, 2026

October 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Oct 29, 2021
Property Address	21031 GRANITE WELLS DR, WALNUT, CA 91789-1361
Document Number	0001624901
Map Reference	MB 1051 PG 53-61
Instrument Date	Oct 22, 2021
Instrument	21-1624901
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	CALIFORNIA BEST TITLE CO INC

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	Family Trust
Address	21031 GRANITE WELLS DR, WALNUT, CA 91789-1361

Mortgage

Document Number	0001624902
Date	Oct 29, 2021
Instrument	21-1624902

Lender

Name	GOLD COAST CAPITAL INVESTMENT
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Nov 1, 2036

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Walnut City
Unified School District	Walnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$682,680 (+2%) Land $392,297 Building $290,383
2025	$9,573.00 (+7.73%) Homeowner's exemption	$669,295 (+4.04%) Land $384,605 Building $284,690
2023	$8,886.00 (+1.9%) Homeowner's exemption	$643,307 Land $369,671 Building $273,636
2022	$8,720.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective September 30, 2026

FEMA Flood Zone	Zone D undetermined · not studied
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; 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	0.02% 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	GSWC-SAN DIMAS private · serves 56,564 people · EPA ID CA1910142
Water Source	Purchased surface water from several systems
Last State Inspection	May 2025
Lead	2 ppb (2024–2026) 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 300 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, Frontier, GeoLinks, Verizon.

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