331 W Olive Ave, Monrovia, CA 91016 Property Records

Los Angeles County property record for 331 W Olive Ave, Monrovia, CA 91016

Property Summary

Property Type	Duplex
Details	2 bd · 2 ba · 1,094 sqft · built 1948
Lot Size	0.182 acres (7,921 sqft)
Owner	2 Company Names on File
Last Sale	$140,000 (Mar 2000)
Tax Bill	$3,523 (2025)
Deeds & Mortgages	Apr 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8506-001-018`

Property Details

APN / Parcel Number

Primary APN	`8506-001-018`

Interior

Bedrooms	2 Beds
Full Baths	2 Baths
Units	2 Units
Building Area	1,094 sqft Living Area

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Architectural Style	Duplex Single
Construction Type	Wood
Lot Area	7,921 sqft (0.182 acres)
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	331 W OLIVE AVE
City	MONROVIA
State	CA
Zip	91016-3339
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	MORM*
Legal Description	J D BICKNELLS ADD LOT 17 BLK A
Legal Subdivision	J D BICKNELLS ADD
Legal Block	A
Legal Lot Number	17
Jurisdiction	LOS ANGELES CA
Township / Civil Division	UPPER SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1004
Census Tract	430901

Owner

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

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

Owner of Record	2 Company Names on File
Mailing Address	3843 WHITTIER CT, CHINO, CA 91710-1645
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 30, 2000 · Amount on File
Deed Sale	Mar 30, 2000 · Amount on File
Deed Document Number	2000478848
Last Transfer Date	Apr 5, 2023
Transfer Doc	0000227097
Record Updated	Oct 29, 2026

April 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 10, 2023
Property Address	331 W OLIVE AVE, MONROVIA, CA 91016-3339
Document Number	0000227097
Map Reference	MB 28 PG 78
Instrument Date	Apr 5, 2023
Instrument	23-0227097
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	Living Trust
Address	3843 WHITTIER CT, CHINO, CA 91710-1645

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	Monrovia City
Unified School District	Monrovia Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$219,455 (+2%) Land $156,761 Building $62,694
2025	$3,523.00 (+1.62%)	$215,153 (+4.04%) Land $153,688 Building $61,465
2024	$3,467.00 (+2.15%)
2023	$3,394.00 (+2.69%)	$206,800 Land $147,721 Building $59,079
2022	$3,305.00

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

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

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	MONROVIA-CITY, WATER DEPT. serves 37,931 people · EPA ID CA1910090
Water Source	Groundwater
Last State Inspection	Sep 2024
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 651 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	5,000 / 5,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Giggle Fiber Cable · Fiber in parts of the area	1,000 / 40
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Verizon.

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