23917 Decorah Rd, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 23917 Decorah Rd, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	5 bd · 3 ba · 2,204 sqft · built 1965
Lot Size	0.227 acres (9,867 sqft)
Owner	Individual Name on Record
Last Sale	$900,000 (Jan 2025)
Tax Bill	$5,059 (2025)
Deeds & Mortgages	Jun 2020 Mortgage May 2019 Transfer + 3 more
Flood Zone	Zone X (minimal risk)
APN	`8703-012-026`

Property Details

APN / Parcel Number

Primary APN	`8703-012-026`

Interior

Bedrooms	5 Beds
Full Baths	3 Baths
Total Rooms	12 Rooms
Stories	2 Stories
Building Area	2,204 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Architectural Style	Conventional
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	9,867 sqft (0.227 acres)
Lot Dimensions	142 ft deep x 71 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Water Source	Commercial

Location & Zoning

Street Address	23917 DECORAH RD
City	DIAMOND BAR
State	CA
Zip	91765-1408
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR108
Legal Description	TRACT NO 27532 LOT 57
Legal Subdivision	27532
Legal Tract	27532
Legal Block	3
Legal Lot Number	57
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3004
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	Individual Name on Record
Mailing Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Single Woman

Deeds, Mortgages & Sale History

Date	Document
Jun 29, 2020	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION
May 6, 2019	Quit Claim Deed, Transfer NOT AVAILABLE
Mar 20, 2019	Intrafamily Transfer, Transfer · ARM FIREFIGHTERS FIRST CU
Mar 20, 2019	Quit Claim Deed, Transfer WESTERN RESOURCES TITLE
Mar 20, 2019	Quit Claim Deed, Transfer WESTERN RESOURCES TITLE

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 3, 2025 · Amount on Record
Deed Sale	Jan 3, 2025 · Amount on Record
Deed Document Number	20254181
Prior Transfer Date	May 3, 2019
Prior Transfer Doc	0000410719
Record Updated	Oct 29, 2026

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000704962
Date	Jun 29, 2020
Instrument	20-0704962

Lender

Name	OWNING CORPORATION
Type	Non-Lending Institution
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2050

May 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	May 6, 2019
Property Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Document Number	0000410719
Instrument Date	May 3, 2019
Instrument	410719
Transaction Type	Transfer
Record Updated	May 21, 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
Relationship	Joint Tenants with Right of Survivorship
Address	23917 DECORAH RD DIAMOND BAR CA 917651408, DIAMOND BAR, CA 91765-1408

March 2019: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 20, 2019
Property Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Document Number	0000246929
Map Reference	MB 734 PG 51-53
Instrument Date	Mar 14, 2019
Instrument	19-0246929
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	WESTERN RESOURCES TITLE

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	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408

Mortgage

Document Number	0000246930
Date	Mar 20, 2019
Instrument	19-0246930

Lender

Name	FIREFIGHTERS FIRST CU
Type	Credit Union
Address	LOS ANGELES, CA 90041

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	5.37%
Type Change Date	Apr 1, 2026
Change Frequency	Annually
Min Rate At Change	3.37%
Max Rate At Change	7.37%
Index	1-Year CMT
Max Rate	10.3%

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 20, 2019
Property Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Document Number	0000246928
Instrument Date	Mar 14, 2019
Instrument	246928
Transaction Type	Transfer
Record Updated	Mar 26, 2019
Title Company	WESTERN RESOURCES TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	23917 DECORAH RD DIAMOND BAR CA 917651408, DIAMOND BAR, CA 91765-1408

March 2019: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 20, 2019
Property Address	23917 DECORAH RD, DIAMOND BAR, CA 91765-1408
Document Number	0000246927
Instrument Date	Mar 14, 2019
Instrument	246927
Transaction Type	Transfer
Record Updated	Mar 26, 2019
Title Company	WESTERN RESOURCES TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	23917 DECORAH RD DIAMOND BAR CA 917651408, DIAMOND BAR, CA 91765-1408

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		$918,000 (+172.06%) Land $642,600 Building $275,400
2025	$5,059.00 (+12.77%) Homeowner's exemption	$337,424 (+4.04%) Land $124,930 Building $212,494
2023	$4,486.00 (+1.63%) Homeowner's exemption	$324,324 Land $120,080 Building $204,244
2022	$4,414.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

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 519 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Frontier, GeoLinks, T-Mobile.

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