Investment Opportunity in the Heart of South Portland. Rare opportunity to own a corner-lot property featuring two buildings and multiple potential income-producing uses. The property includes a two-unit duplex plus an additional commercial building, offering an investor the flexibility to explore a variety of possibilities. The duplex features two residential units. The first-floor Unit 1 offers two bedrooms and has benefited from recent updates throughout. Unit 2, located on the second floor, offers one bedroom and is currently being rented for $1550. The adjacent former restaurant space provides additional potential for redevelopment and may offer the opportunity to convert the existing space into an additional residential unit for a potential three-unit property, subject to applicable zoning, permitting, and code requirements. With a desirable corner-lot location in the heart of South Portland, convenient access to local amenities, and multiple potential avenues for future use, this property presents an excellent opportunity for investors, owner-occupants, or developers looking to add value in a sought-after location. Location, location, location!
Thornton Heights, located between Broadway and Ocean Street, is a residential and walkable South Portland neighborhood with early-20th-century homes and a compact village-style commercial strip. The neighborhood’s character concentrates around the Broadway and Ocean Street junction, where corner storefronts, takeout counters, and everyday services keep the sidewalks active. Thornton Heights United Methodist Church and the historic Thornton Heights Fire Station lend a civic, small-center feel. Tree-lined blocks mix classic New England capes and colonials with tidy multifamily buildings. Side streets lead toward the Greenbelt Walkway for car-free commuting and weekend loops. The setting balances a calm, lived-in pace with a practical, local errand run.
Provided by Walk Score and Local Logic
Offer insights
449 Main St · $549,900
$568K and above
75% chance or better to win
Why $568K+ is a strong offer
DAYS ON MARKET
8 days
The average home goes pending in 18 days.
SALE-TO-LIST
99.4%
Most homes are selling 1% below list price.
About offer insights
Property details
Interior
Exterior
Finance
Kitchen
Bathroom
Bedroom
Living
Interior features
First-floor bedroom
Attic
Bedrooms
One 2-bedroom unit on the first level
One 1-bedroom unit on the second level
Bathrooms
Two full bathrooms total (one in each unit)
Kitchen
Refrigerator included in each unit
Laundry & utility
No dedicated water heaters for units
Dedicated electric meters for both units
Flooring
Laminate flooring
Vinyl flooring
Heating & cooling
Hot water boiler heating with radiators
Heating present in both units
Circuit breaker electrical system
Exterior features
Porch
Outbuilding
Corner lot
Level lot
Intown location near shopping and highway access
Neighborhood setting
Home design
Multi-level building
Residential zoning
Built in 1900
Parking
On-site paved parking
Combination of off-street and on-street spaces
Common parking with 1–10 spaces available
Construction
Wood frame construction with vinyl siding
Block foundation
Shingle roof with flat and pitched roof sections
Utilities
Public water
Public sewer
Oil-fired water heater
Utilities are on
Financial info
Property configured as a 2-unit multi-family (one 2-bed unit and one 1-bed unit)
One unit currently shows an actual rent of $1,550
Electricity and solar
View estimated energy costs and solar savings for this home
As the MLS and public records start to fill up, we'll list the details here.
Public record
Public record
Zoning
Beds
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Baths
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Stories
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Lot width
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Lot depth
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Lot size
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Year renovated
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Finished Sq. Ft.
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Unfinished Sq. Ft.
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Total Sq. Ft.
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Year built
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Style
Multi-Family (2-4 Unit)
County
Cumberland County
APN
SPOR-000053-000000-000169
Parking Spaces
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Basement
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Accessible
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HOA Dues
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Garage
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Features
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Last updated by owner on May 28, 2026.
A
Residential District
To provide residential areas within the City of South Portland of medium density in a manner which will promote a wholesome living environment. To this end residential development shall not exceed 4 du per net residential acre and may preferably occur in accordance with the provisions of Sec. 1501 et seq. of this Chapter.
Permitted uses
Include but are not limited to:
Assembly/ meeting place
Housing-Single unit
Housing-Multiple units
Educational/school
Fire house
Library
Police station
Historical weather
South Portland, ME • 04106
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Sun exposure
Try the sun simulator tool to see how light moves across the property at different times of day and year.
Provided by Shadowmap
Redfin Estimate for 449 Main St
$550,460
$560 over list price of $550K
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $499K to $635K.