24254 Gem Pl, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 24254 Gem Pl, Diamond Bar, CA 91765

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,305 sqft · built 1988
Lot Size	0.182 acres (7,947 sqft)
Owner	2 Company Names on File
Last Sale	$235,000 (Mar 2001)
Tax Bill	$5,106 (2025)
Deeds & Mortgages	Apr 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8281-040-049`

Property Details

APN / Parcel Number

Primary APN	`8281-040-049`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Building Area	1,305 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Construction Type	Wood
Lot Area	7,947 sqft (0.182 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	24254 GEM PL
City	DIAMOND BAR
State	CA
Zip	91765-1854
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR115000-
Legal Description	TR=42580 LOT 42
Legal Subdivision	42580
Legal Tract	42580
Legal Block	1
Legal Lot Number	42
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1001
Census Tract	403321

Owner

24254 Gem Pl is owned by a company that acquired it in April 2017 and is owner-occupied.

Source: Los Angeles County records, as of August 25, 2026

Owner of Record	2 Company Names on File
Mailing Address	24254 GEM PL, DIAMOND BAR, CA 91765-1854
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 23, 2001 · Amount on File
Deed Sale	Mar 23, 2001 · Amount on File
Deed Document Number	2001470579
Last Transfer Date	Apr 4, 2017
Transfer Doc	0000392661
Record Updated	Oct 29, 2026

April 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 10, 2017
Property Address	24254 GEM PL, DIAMOND BAR, CA 91765-1854
Document Number	0000392661
Instrument Date	Apr 4, 2017
Instrument	392661
Transaction Type	Transfer
Record Updated	Apr 19, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	24254 GEM PL DIAMOND BAR CA 917651854, DIAMOND BAR, CA 91765-1854

Tax Assessment & Valuation

The 2025 property tax bill for 24254 Gem Pl was $5,106 with a homeowner's exemption.

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		$361,165 (+2%) Land $233,607 Building $127,558
2025	$5,106.00 Homeowner's exemption	$354,084 Land $229,027 Building $125,057
2023	$4,642.00 (+1.64%) Homeowner's exemption	$340,336 Land $220,135 Building $120,201
2022	$4,567.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 24254 Gem Pl in Zone X, an area of minimal flood risk.

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

Wildfire risk around 24254 Gem Pl is low, with a 0.03% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 66% of the US · lower than 80% of California
Wildfire Likelihood	0.03% annual chance
Exposure	Indirect 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 322 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
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20