23734 Decorah Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23734 Decorah Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,503 sqft · built 1964
Lot Size	0.202 acres (8,798 sqft)
Owner	2 Company Names on Record
Last Sale	$539,000 (Aug 2005)
Tax Bill	$6,893 (2025)
Deeds & Mortgages	Jun 2021 Mortgage Jun 2021 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`8703-003-054`

Property Details

APN / Parcel Number

Primary APN	`8703-003-054`
Alternative APN	`8703003015`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	10 Rooms
Stories	1 Story
Building Area	1,503 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	8,798 sqft (0.202 acres)
Lot Dimensions	121 ft deep x 66 ft wide

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	23734 DECORAH RD
City	DIAMOND BAR
State	CA
Zip	91765-1301
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	POR OF SEC 3 T 2S R 9W AND LOT 144 TR= 27530
Legal Range	09W
Legal Township	02S
Legal Section	03
Legal Subdivision	27530
Legal Tract	27530
Legal Block	3
Legal Lot Number	144
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3006
Census Tract	403316

Owner

Source: Los Angeles County records, as of October 20, 2026

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

Owner of Record	2 Company Names on Record
Mailing Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Jun 3, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage QUICKEN LOANS LLC
Jun 7, 2021	Intrafamily Transfer, Transfer CHICAGO TITLE COMPANY
Mar 18, 2020	Intrafamily Transfer, Transfer PRIORITY TITLE COMPANY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 30, 2005 · Amount on Record
Deed Sale	Aug 30, 2005 · Amount on Record
Prior Sale	Aug 30, 2002 · Amount on Record
Deed Document Number	20052084537
Prior Transfer Date	Oct 12, 2004
Prior Transfer Doc	0002727655
Record Updated	Oct 29, 2026

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 3, 2021
Property Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301
Document Number	0000884947
Map Reference	MB 714 PG 76-80
Instrument Date	May 10, 2021
Instrument	21-0884947
Transaction Type	Transfer
Record Updated	Jul 20, 2022
Title Company	CHICAGO TITLE COMPANY

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	Joint Tenants
Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301

Mortgage

Document Number	0000884948
Date	Jun 3, 2021
Instrument	21-0884948

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jun 1, 2051

June 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Jun 7, 2021
Property Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301
Document Number	0000893222
Map Reference	MB 714 PG 76-80
Instrument Date	May 10, 2021
Instrument	21-0893222
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	CHICAGO TITLE COMPANY

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	Living Trust
Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301

March 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 18, 2020
Property Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301
Document Number	0000318057
Map Reference	MB 714 PG 76-80
Instrument Date	Mar 13, 2020
Instrument	20-0318057
Transaction Type	Transfer
Record Updated	Jul 20, 2022
Title Company	PRIORITY TITLE COMPANY

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	Living Trust
Address	23734 DECORAH RD, DIAMOND BAR, CA 91765-1301

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	Diamond Bar City
Unified School District	Pomona Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$502,693 (+2%) Land $402,108 Building $100,585
2025	$6,893.00 (+11.09%) Homeowner's exemption	$492,837 (+4.04%) Land $394,224 Building $98,613
2023	$6,205.00 (+1.59%) Homeowner's exemption	$473,702 Land $378,917 Building $94,785
2022	$6,108.00

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 · 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
Nearby Flood Claims	1 (1980)
Most Recent Claim	Feb 1980 · 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	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	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	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 414 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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