23731 Decorah Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23731 Decorah Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,346 sqft · built 1964
Lot Size	0.161 acres (7,003 sqft)
Owner	2 Company Names on Record
Last Sale	$490,000 (Oct 2015)
Tax Bill	$7,970 (2025)
Deeds & Mortgages	Jul 2020 Mortgage Jul 2021 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8703-015-008`

Property Details

APN / Parcel Number

Primary APN	`8703-015-008`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,346 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	7,003 sqft (0.161 acres)
Lot Dimensions	117 ft deep x 62 ft wide

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	23731 DECORAH RD
City	DIAMOND BAR
State	CA
Zip	91765-1302
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR18000*
Legal Description	TRACT NO 27530 LOT 84
Legal Subdivision	27530
Legal Tract	27530
Legal Block	3
Legal Lot Number	84
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3003
Census Tract	403316

Owner

Source: Los Angeles County records, as of August 25, 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	23731 DECORAH RD, DIAMOND BAR, CA 91765-1302
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Jul 28, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS
Jul 22, 2021	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 6, 2015 · Amount on Record
Deed Sale	Oct 6, 2015 · Amount on Record
Prior Sale	Nov 30, 2010
Deed Document Number	20151236561
Transfer Doc	0000540570
Record Updated	Oct 29, 2026

July 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23731 DECORAH RD, DIAMOND BAR, CA 91765-1302
Document Number	0000878828
Instrument Date	Jul 28, 2020
Transaction Type	Mortgage
Record Updated	Aug 11, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Husband and Wife
Address	23741 DECORAH RD DIAMOND BAR CA 91765, DIAMOND BAR, CA 91765

Mortgage

Document Number	0000878828
Date	Aug 3, 2020
Instrument	878828

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 2, 2050

July 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Jul 22, 2021
Property Address	23731 DECORAH RD, DIAMOND BAR, CA 91765-1302
Document Number	0001130960
Map Reference	MB 714 PG 76-80
Instrument Date	Jul 3, 2020
Instrument	21-1130960
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	23731 DECORAH RD, DIAMOND BAR, CA 91765-1302

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		$591,651 (+2%) Land $473,323 Building $118,328
2025	$7,970.00 (+10.82%) Homeowner's exemption	$580,051 (+4.04%) Land $464,043 Building $116,008
2023	$7,192.00 (+1.6%) Homeowner's exemption	$557,529 Land $446,025 Building $111,504
2022	$7,079.00

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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