442 Patterson Dr, Monrovia, CA 91016 Property Records

Los Angeles County property record for 442 Patterson Dr, Monrovia, CA 91016

Property Summary

Property Type	Duplex
Details	3 bd · 2 ba · 1,518 sqft · built 1952
Lot Size	0.218 acres (9,503 sqft)
Owner	Individual Name on Record
Last Sale	$675,000 (Jan 2007)
Tax Bill	$12,688 (2025)
Deeds & Mortgages	Mar 2022 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`8520-019-019`

Property Details

APN / Parcel Number

Primary APN	`8520-019-019`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Units	2 Units
Stories	1 Story
Building Area	1,518 sqft Living Area

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1952
Architectural Style	Bungalow
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Tile
Lot Area	9,503 sqft (0.218 acres)
Lot Dimensions	140 ft deep x 72 ft wide
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	442 PATTERSON DR
City	MONROVIA
State	CA
Zip	91016-1623
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	MORL*
Legal Description	MONROE ADDITION TO MONROVIA TRACT N 72 F T OF W 153.5 FT EX OF ST OF LOT 4 BLK N
Legal Subdivision	MONROE ADD TO MONROVIA TRACT
Legal Tract	N
Legal Block	N
Legal Lot Number	4
Jurisdiction	LOS ANGELES CA
Township / Civil Division	UPPER SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1006
Census Tract	430301

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	442 PATTERSON DR, MONROVIA, CA 91016-1623
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 19, 2007 · Amount on Record
Deed Sale	Jan 19, 2007 · Amount on Record
Prior Sale	Jul 18, 2005 · Amount on Record
Deed Document Number	2007107554
Last Transfer Date	Feb 22, 2022
Transfer Doc	0000274762
Record Updated	Oct 29, 2026

March 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 9, 2022
Property Address	442 PATTERSON DR, MONROVIA, CA 91016-1623
Document Number	0000274762
Map Reference	MB 29 PG 34
Instrument Date	Feb 22, 2022
Instrument	22-0274762
Transaction Type	Transfer
Record Updated	Jul 20, 2022
Title Company	NOT AVAILABLE, PROVIDENT TITLE COMPANY

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	442 PATTERSON DR, MONROVIA, CA 91016-1623

Mortgage

Document Number	0000274763
Date	Mar 9, 2022
Instrument	22-0274763

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 1, 2052

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		$945,050 (+2%) Land $738,417 Building $206,633
2025	$12,688.00 (+2.19%)	$926,523 (+4%) Land $723,939 Building $202,584
2024	$12,416.00 (+2.35%)
2023	$12,131.00 (+13.96%)	$890,847 Land $695,829 Building $195,018
2022	$10,645.00

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	2 in force
Nearby Flood Claims	2 (1980–1992)
Most Recent Claim	Feb 1992 · Rain/snow/wind Storms, Flooding, Mudslides

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	High above 71% of the US · above 46% of California
Wildfire Likelihood	0.3% 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	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 578 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
Giggle Fiber Cable	1,000 / 40
Verizon Fixed Wireless	300 / 20

May also be available: T-Mobile.

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