1252 Hern Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 1252 Hern Dr, Diamond Bar, CA 91789

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,352 sqft · built 1981
Lot Size	0.307 acres (13,371 sqft)
Owner	2 Companies on Record
Tax Bill	$4,169 (2025)
Deeds & Mortgages	May 2026 Transfer Aug 2023 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8763-017-018`

Property Details

APN / Parcel Number

Primary APN	`8763-017-018`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	2,352 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1981
Effective Year Built	Effective 1981
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	13,371 sqft (0.307 acres)
Lot Dimensions	161 ft deep x 79 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	1252 HERN DR
City	WALNUT
State	CA
Zip	91789-3835
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR110000*
Legal Description	*TR=33636 LOT 40
Legal Subdivision	33636
Legal Tract	33636
Legal Block	3
Legal Lot Number	40
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3006
Census Tract	408707

Owner

Source: Los Angeles County assessment roll, as of May 21, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Companies on Record
Mailing Address	1252 HERN DR, WALNUT, CA 91789-3835
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Living Trust

Deeds, Mortgages & Sale History

Date	Document
May 19, 2026	Quit Claim Deed, Transfer NONE LISTED ON DOCUMENT
Aug 8, 2023	Deed of Trust, Mortgage · Conventional Mortgage ROCKET MORTGAGE LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Apr 23, 2026
Transfer Doc	0000367935
Record Updated	Sep 20, 2026

May 2026: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 19, 2026
Property Address	1252 HERN DR, WALNUT, CA 91789-3835
Document Number	0000367935
Instrument Date	Apr 23, 2026
Instrument	2026367935
Transaction Type	Transfer
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Living Trust
Address	1252 HERN DR, WALNUT, CA 91789-3835

August 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	1252 HERN DR, DIAMOND BAR, CA 91789-3835
Transaction Type	Mortgage
Record Updated	Aug 22, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1252 HERN DR, WALNUT, CA 91789-3835

Mortgage

Document Number	0000523488
Date	Aug 8, 2023
Instrument	23-0523488

Lender

Name	ROCKET MORTGAGE LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Sep 1, 2038

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2025	$4,169.00 (+10.41%) Homeowner's exemption	$286,045 (+4.04%) Land $96,202 Building $189,843
2023	$3,776.00 (+2.19%) Homeowner's exemption	$274,939 Land $92,467 Building $182,472
2022	$3,695.00

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 X minimal risk
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	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	WALNUT VALLEY WATER DISTRICT serves 100,941 people · EPA ID CA1910234
Water Source	Purchased surface water from several systems
Last State Inspection	Jun 2023
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 496 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable	1,000 / 1,000
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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