511 Mountain Crest Rd, Duarte, CA 91010 Property Records

Los Angeles County property record for 511 Mountain Crest Rd, Duarte, CA 91010

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 1,856 sqft · built 1962
Lot Size	0.151 acres (6,569 sqft)
Owner	Individual Name on Record
Last Sale	$737,000 (Aug 2018)
Tax Bill	$11,268 (2025)
Deeds & Mortgages	Jan 2021 Mortgage Jan 2020 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`8610-009-012`

Property Details

APN / Parcel Number

Primary APN	`8610-009-012`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	1,856 sqft Living Area

Exterior

Year Built	Built 1962
Effective Year Built	Effective 1977
Construction Type	Wood
Lot Area	6,569 sqft (0.151 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	511 MOUNTAIN CREST RD
City	DUARTE
State	CA
Zip	91010-1514
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	DUR16500*
Legal Description	TRACT NO 20497 LOT 3
Legal Subdivision	20497
Legal Tract	20497
Legal Block	1
Legal Lot Number	3
Jurisdiction	LOS ANGELES CA
Township / Civil Division	UPPER SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1001
Census Tract	430003

Owner

Source: Los Angeles County records, as of May 21, 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	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Sole Owner

Deeds, Mortgages & Sale History

Date	Document
Jan 12, 2021	Deed of Trust, Mortgage · Conventional Mortgage OWNING CORPORATION
Jan 11, 2020	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS
Aug 7, 2018	Quit Claim Deed, Transfer LAWYERS TITLE
Aug 7, 2018	Grant Deed, Transfer · Conventional Mortgage QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 7, 2018 · Amount on Record
Deed Sale	Aug 7, 2018 · Amount on Record
Prior Sale	Jun 13, 2002 · Amount on Record
Deed Document Number	2018792571
Prior Transfer Date	Jul 9, 2018
Prior Transfer Doc	0000792570
Record Updated	Sep 20, 2026

January 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514

Mortgage

Document Number	0000054295
Date	Jan 12, 2021
Instrument	21-0054295

Lender

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

Agreement

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

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514
Document Number	0000075339
Instrument Date	Jan 11, 2020
Transaction Type	Mortgage
Record Updated	Feb 4, 2020
Title Company	OTHER

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	511 MOUNTAIN CREST RD DUARTE CA 910101514, DUARTE, CA 91010-1514

Mortgage

Document Number	0000075339
Date	Jan 21, 2020
Instrument	75339

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	324 Months
Due	Jan 20, 2047

August 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 7, 2018
Property Address	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514
Document Number	0000792570
Instrument Date	Jul 9, 2018
Instrument	792570
Transaction Type	Transfer
Record Updated	Aug 13, 2018
Title Company	LAWYERS TITLE

Transaction

Tax	$0.00
Amount Accuracy	Full Value
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	511 MOUNTAIN CREST RD DUARTE CA 910101514, DUARTE, CA 91010-1514

August 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 7, 2018
Property Address	511 MOUNTAIN CREST RD, DUARTE, CA 91010-1514
Document Number	0000792571
Instrument Date	Jul 3, 2018
Instrument	792571
Transaction Type	Transfer
Record Updated	Aug 13, 2018
Title Company	LAWYERS TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$810.70
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	511 MOUNTAIN CREST RD DUARTE CA 910101514, DUARTE, CA 91010-1514

Mortgage

Document Number	792572
Date	Aug 7, 2018
Instrument	792572

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 6, 2048

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of May 21, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Duarte City
Unified School District	Duarte Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2025	$11,268.00 (+5.91%)	$822,133 (+4.04%) Land $550,506 Building $271,627
2023	$10,639.00 (+2.53%)	$790,210 Land $529,130 Building $261,080
2022	$10,376.00

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 Policies	1 in force

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	Moderate above 54% of the US · lower than 68% of California
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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	CAL-AM WATER COMPANY - DUARTE private · serves 24,767 people · EPA ID CA1910186
Water Source	Groundwater
Last State Inspection	Feb 2025
Lead	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 282 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	5,000 / 5,000
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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