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.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
6
Baths
2
Stories
2
Lot width
—
Lot depth
—
Lot size
5,663 Sq. Ft.
Year renovated
—
Sq. Ft.
2,134
Year built
1910
Style
Multi-Family (2-4 Unit)
County
Cumberland County
APN
132725
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 27, 2026.
R5
Residential
To provide appropriate areas of the city for medium-density residential development characterized by singlefamily, two-family and low-intensity multifamily dwellings on individual lots; to ensure the stability of established medium-density neighborhoods by controlling residential conversions; and to provide for planned residential unit development on substantially-sized parcels.
Property details
Parking
Parking Information
Parking Features: 5 - 10 Spaces, Paved
Interior
Virtual Tour
Bathroom Information
# of Baths (Full): 2
Basement Information
Basement Entry: Interior, Full, Bulkhead
Interior Features
Flooring: Wood, Vinyl, Carpet
Laundry Information
Laundry Features: Washer Hookup
Multi-Unit Information
# of Units Total: 2
# of 3 Bedroom Units: 2
Operating Expense: $10,800
Gross Income: $28,800
Unit 1 Information
# of Bedrooms: 3
Dedicated Gas Meter: No
Dedicated Water Heater: No
Electric: No
Level: First
Refrigerator: Yes
Sewer: Yes
Water: Yes
Unit 2 Information
# of Bedrooms: 3
Actual Rent: $2,400
Dedicated Gas Meter: No
Dedicated Water Heater: No
Electric: No
Level: First
Refrigerator: Yes
Sewer: Yes
Water: Yes
Exterior
Building Information
Construction Materials: Vinyl Siding, Wood Frame
Foundation Details: Stone
Roof: Shingle
Total Building Area (Sq. Ft.): 1,980
Exterior Features
Patio & Porch Features: Deck
Property Information
Year Built: 1910
Above-Grade Finished Area (Sq. Ft.): 1,980
Lot Information
Lot Size (Sq. Ft.): $5,662.80
Lot Size (Acres): 0.13
Lot Size Source: Public Records
Lot Features: Open, Neighborhood
Road Surface Type: Paved
Zoning: R5
Financial
Tax Information
Annual Tax Amount: $5,752
Tax Year: 2024
Utilities
Utility Information
Has Heating
Heating: Heat Pump
Has Cooling
Cooling: Heat Pump
Electric: Circuit Breakers
Sewer: Public Sewer
Utilities: Utilities On
Utilities On: Yes
Water Source: Public
Water Heater: Electric
Location
Location Information
Unparsed Address: 155 Allen Avenue, Portland, ME 04103
Directions: GPS
Public facts
Beds: 6
Baths: 2.0
Sq. Ft.: 2,134
Stories: 2.0
Lot Size: 5,663 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1910
Year Renovated: —
County: Cumberland County
APN: 132725
Home facts updated by county records on Jul 27, 2026
Around this home
Schools
Harrison Lyseth Elementary School
Public PreK-5 • Assigned • 1.0mi
7/10
Lyman Moore Middle School
Public 6-8 • Assigned • 0.9mi
4/10
Casco Bay High School
Public 9-12 • Assigned • 0.3mi
5/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
4/10 Heat Factor
7 days above 88° expected this year, 17 days in 30 years
6/10 Wind Factor
60% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Portland, ME • 04103
Average low and high temperatures (°F)
30
16
33
15
44
28
53
37
64
48
76
57
81
63
78
58
72
54
62
43
49
33
35
20
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 8.4 hours in
June and 4.2 hours in December, placing it below the
U.S. average for solar exposure.
8.4 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$623,000 – $754,000
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