Back on market due to financing. Welcome to 155 Allen Avenue, located in the Deering Neighborhood of Portland. This colonial-style side-by-side duplex in Portland offers a fantastic opportunity for both owner-occupants and investors. Each unit features 3 bedrooms, separate driveways, individual electrical meters, and separate heat pumps. The owner's unit (#155) has been freshly updated with new carpet and interior paint and is move-in ready. The tenant-occupied unit (#153) has undergone extensive improvements including new windows, roof sheathing and shingles, a new deck, and an updated kitchen. Additional upgrades include a hot water heater servicing both units (connected to #153's electrical), new circuit breaker boxes with updated cables to meters, as well as new outlets, switches, and lighting in unit #153. The seller also removed large trees in the backyard, improved drainage and added loam and seed to create a spacious, open outdoor area. Unit #155 also features a new tub surround in the bathroom. Located near Casco Bay High School/PATHS and a short drive to Lyseth Elementary and Lyman Moore Middle School, this property is conveniently within a short drive of the Old Port, Arts District, and the Maine Mall. Whether you're looking for a place to call home with rental income or a full investment property, this duplex offers excellent versatility and potential. There may be potential to expand into the third floor of each unit with the appropriate permits. The owner's unit is easy to show, while the tenant's unit requires 24-hour notice. Inspection report available upon request. Open house on Saturday, May 10 from 11:00 AM to 1:00 PM.
Closed
$555,000
155 Allen Avenue, Portland, ME 04103
6beds
1,980sqft
Multi Family
Built in 1910
-- sqft lot
$555,000 Zestimate®
$280/sqft
$2,723 Estimated rent
What's special
Zillow last checked: 7 hours ago
Listing updated: July 18, 2025 at 05:39am
Listed by:
EXP Realty
Bought with:
Keller Williams Realty
Source: Maine Listings,MLS#: 1616991

Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 2
- Full bathrooms: 2
Heating
- Heat Pump
Cooling
- Heat Pump
Appliances
- Laundry: Washer Hookup
Features
- Flooring: Wood, Vinyl, Carpet
- Basement: Interior,Full,Bulkhead
Interior area
- Total structure area: 1,980
- Total interior livable area: 1,980 sqft
- Finished area above ground: 1,980
- Finished area below ground: 0
Property
Parking
- Parking features: 5 - 10 Spaces, Paved
Features
- Patio & porch: Deck
Lot
- Size: 5,662 sqft
- Features: Open Lot, Neighborhood
Details
- Parcel number: PTLDM436BA024001
- Zoning: R5
Construction
Type & style
- Home type: MultiFamily
- Architectural style: Colonial
- Property subtype: Multi Family
Materials
- Vinyl Siding, Wood Frame
- Foundation: Stone
- Roof: Shingle
Condition
- Year built: 1910
Utilities & green energy
- Electric: Circuit Breakers
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Utilities On
Community & neighborhood
Location
- Region: Portland
Other
Other facts
- Road surface type: Paved
Services availability

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