23511 Decorah Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23511 Decorah Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	5 bd · 4 ba · 3,352 sqft · built 1964
Lot Size	0.174 acres (7,580 sqft)
Owner	2 Company Names on Record
Last Sale	$780,000 (Jan 2015)
Tax Bill	$11,053 (2025)
Deeds & Mortgages	Apr 2021 Transfer Sep 2019 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8703-016-016`

Property Details

APN / Parcel Number

Primary APN	`8703-016-016`

Interior

Bedrooms	5 Beds
Full Baths	4 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	3,352 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1989
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	7,580 sqft (0.174 acres)
Lot Dimensions	124 ft deep x 63 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	23511 DECORAH RD
City	DIAMOND BAR
State	CA
Zip	91765-1310
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR108
Legal Description	TRACT NO 27530 LOT 55
Legal Subdivision	27530
Legal Tract	27530
Legal Block	3
Legal Lot Number	55
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3007
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	2530 LEON, LA VERNE, CA 91750-1168
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Apr 26, 2021	Intrafamily Transfer, Transfer
Sep 26, 2019	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 22, 2015 · Amount on Record
Deed Sale	Jan 22, 2015 · Amount on Record
Prior Sale	Sep 28, 2005 · Amount on Record
Deed Document Number	201573362
Last Transfer Date	Jan 30, 2021
Transfer Doc	0000655086
Record Updated	Oct 29, 2026

April 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 26, 2021
Property Address	23511 DECORAH RD, DIAMOND BAR, CA 91765-1310
Document Number	0000655086
Map Reference	MB 714 PG 76-80
Instrument Date	Jan 30, 2021
Instrument	21-0655086
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
Address	1555 VALLECITO, POMONA, CA 91768-4131

September 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Sep 26, 2019
Property Address	23511 DECORAH RD, DIAMOND BAR, CA 91765-1310
Document Number	0001014325
Instrument Date	Sep 23, 2019
Instrument	1014325
Transaction Type	Transfer
Record Updated	Oct 3, 2019
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	1555 VALLECITO POMONA CA 917684131, POMONA, CA 91768-4131

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		$812,873 (+2%) Land $446,205 Building $366,668
2025	$11,053.00 (+9.83%)	$796,935 (+4.04%) Land $437,456 Building $359,479
2024	$10,064.00 (+1.97%)
2023	$9,870.00 (+1.54%)	$765,991 Land $420,470 Building $345,521
2022	$9,720.00

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 · 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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