For sale

Listed by: Think Boutiq Real Estate • Karey Hannegan • Contact: kareyhannegan@gmail.com

$869,000

148 N Shamrock Ave, Monrovia, CA 91016

2beds

2baths

1,080sqft

$6,170/mo

Get pre-qualified

Duplex

Built in 1924

-- sqft lot

$864,200 Zestimate^®

$805/sqft

$-- HOA

What's special

Welcome to this darling, high-potential duplex nestled in one of Monrovia’s most coveted neighborhoods. Brimming with classic Southern California character, this property features two separate, individual 1-bedroom, 1-bathroom units, offering incredible flexibility for savvy investors or an owner-user looking to live in one unit and rent out the other. There is one single car garage, a car port and driveway parking for convenience. Each bright and inviting unit features an efficient layout, comfortable living spaces, and a private feel. Enjoy the best of Monrovia living just moments from the vibrant shops, dining, and weekend street fairs of Old Town Monrovia, as well as scenic foothill hiking trails and convenient commuter access. Whether you are expanding your portfolio or starting your property-owning journey, this investment opportunity blends charm, location, and endless possibilities.

5 days
276
9

Likely to sell faster than

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 2
Bathrooms: 2

Other

Features: Dressing Area

Heating

Floor Furnace

Cooling

Wall/Window Unit(s)

Appliances

Laundry: Common Area, Outside

Features

Dressing Area
Flooring: Wood
Has fireplace: No
Fireplace features: None
Common walls with other units/homes: 1 Common Wall

Interior area

Total structure area: 1,080
Total interior livable area: 1,080 sqft

Property

Parking

Total spaces: 4
Parking features: Garage, Carport
Garage spaces: 1
Carport spaces: 1
Covered spaces: 2
Uncovered spaces: 2

Features

Levels: One
Stories: 1
Entry location: 1
Pool features: None
Spa features: None
Has view: Yes
View description: Mountain(s)

Lot

Size: 3,602 Square Feet
Features: Back Yard

Details

Parcel number: 8518041022
Special conditions: Trust

Construction

Type & style

Home type: MultiFamily
Architectural style: Bungalow
Property subtype: Duplex
Attached to another structure: Yes

Materials

Foundation: Raised

Condition

New construction: No
Year built: 1924

Utilities & green energy

Sewer: Public Sewer
Water: Public

Community & HOA

Community

Features: Biking, Curbs, Foothills, Sidewalks

Location

Region: Monrovia

Financial & listing details

Price per square foot: $805/sqft
Tax assessed value: $191,009
Date on market: 10/14/2026
Cumulative days on market: 5 days
Listing terms: Cash,Cash to New Loan,Conventional
Tenant pays: Cable TV, Electricity, Gas
Road surface type: Paved

Estimated market value

$864,200

$821,000 - $907,000

$3,231/mo

Price history

Date	Event	Price
10/14/2026	Listed for sale	$869,000+655.7%$805/sqft
Source: CRMLS #PW26185611 Report a problem
1/15/1997	Sold	$115,000-11.5%$106/sqft
Source: Public Record Report a problem
4/22/1996	Sold	$130,000$120/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2026	--	$191,009 +2%
2025	$3,116 +2.5%	$187,265 +2%
2024	$3,041 +2.2%	$183,594 +2%
2023	$2,976 +2.7%	$179,995 +2%
2022	$2,897 +2%	$176,467 +2%
2021	$2,840 +2.6%	$173,008 +1%
2020	$2,767	$171,235 +2%
2019	$2,767 +5.1%	$167,879 +2%
2018	$2,633	$164,589 +2%
2017	$2,633 +1.8%	$161,363 +2%
2016	$2,587 +2.1%	$158,200 +1.5%
2015	$2,533 +2.6%	$155,825 +2%
2014	$2,468	$152,774 +2.5%
2012	--	$149,103 +2%
2011	--	$146,181 +0.8%
2010	--	$145,090 -0.2%
2009	--	$145,435 +2%
2008	--	$142,585 +2%
2007	--	$139,790 +2%
2006	--	$137,050
2005	--	$137,050 +4%
2004	--	$131,730 +1.9%
2003	--	$129,317 +2%
2002	--	$126,783 +4%
2000	--	$121,862