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Victorian Duplex with Two-Unit Potential
New
For Sale
$1,349,000

77 Carleton Street, Portland, ME 04102

Multi-Family, Portland, ME

Property Size3,030 SF
Lot Size0.07 Acres
Price / SF$445.21
Days on Market2

Property Features for 77 Carleton Street

General Information

Property type Residential Multi Family
Property subtype Other
Zoning RN4
Bathrooms 3
Full bathrooms 3
Rooms Bathroom 1, Bathroom 2, Basement, Bathroom 3
Pets allowed No
Interior features In-Law Apartment, Storage
Basement Unfinished, Full
Lot features Sidewalks, Historic District, Near Town, Neighborhood, Near Public Transit
Standard status Active
Size 3,030 SF
Lot size 0.07 Acres

Taxes and HOA fees

Tax Year 2025
Tax Annual Amount 15459

Utilities

Sewer type Public Sewer
Heating system Electric (Heating), Other (Heating), Natural Gas, Steam, Heat Pump (Heating)
Cooling system Heat Pump
Water source Public

Building Details

Year built 1850
Number of units 2
Flooring type Wood, Carpet
Building materials Masonry, Block
Roof type Shingle
Architectural style Victorian
Additional Structures Storage
Listing Agency: Portside Real Estate Group
Listed By: Elizabeth Reece
Added: Oct 14 Last Checked: Oct 15 at 6:06AM
MLS# 1684273

Copyright © 2026 Maine Listings. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

Built in 1850, this 3,030-square-foot Victorian masonry residence includes wood and carpet flooring, storage, and an in-law apartment. Historic details include bay windows, decorative fireplaces, original mantels, extensive moldings, and 10-foot ceilings. Heat pumps provide heating and cooling, and the property has two off-street parking spaces and an outdoor seating area on a 0.07-acre lot.

A potential arrangement would create two units, each with its own kitchen, laundry, and living area. One could span the first and second floors with two bedrooms and 1.5 baths; the other could combine a renovated studio with two third-floor bedrooms and two full baths. The proposed layout requires adding a wall on the second floor.

Tandem Coffee, Longfellow Hotel, Wayside Tavern, and the Western Promenade are nearby. Public water and public sewer serve the property.

Key Highlights

  • 3,030 square feet on a 0.07‑acre lot
  • Victorian masonry residence built in 1850
  • Potential two‑unit configuration; second‑floor wall addition required

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$53,545
Cap Rate
3.97%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,070,900 $1.1M
Cap Rate 7%
$764,929 $764.9K
Cap Rate 9%
$594,944 $594.9K
Market Conditions
NOI Build-Up for 3,030 SF
Gross rent
$81.8K $27.00/SF
− Vacancy
−$5.3K −$1.76/SF
EGI
$76.5K $25.25/SF
− OpEx
−$22.9K −$7.57/SF
NOI
$53.5K $17.67/SF
Area
Cumberland County, ME
Vacancy
6.50%
Lease Rate
$27.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,070,900
Cap Rate 7%
$764,929
Cap Rate 9%
$594,944

Alternative Uses

Best Use
Multifamily LT 5
$764.9K
$669.3K – $892.4K (±1% cap)
NOI $53,545 @ 7.0% cap · market cap 3.97%
Second Best
Apartment 5plus
$711.6K
$622.7K – $830.3K (±1% cap)
NOI $49,815 @ 7.0% cap · market cap 3.69%
Theoretical Best
Office A
$832.8K
$728.7K – $971.6K (±1% cap)
NOI $58,296 @ 7.0% cap · market cap 4.32%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Locksmith Auto Parts Store Pet Grooming Service Carpet & Flooring Store Pet Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

3,626
Businesses Nearby

Demographics for 04102, ME

18,002
Population
8,633
Households
2.1
Avg Household Size
38
Median Age
62%
College-Educated
96%
High-School Grad
6.0 sq mi
ZIP Area
3,000
Density / Sq Mi
$79,631
Median Household Income
$47,898
Median Earnings
$1,435
Median Rent
$464,100
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Separate kitchens and laundry areas support a possible two-unit layout.
Where is this duplex located?
The property is located at 77 Carleton Street Portland, ME.
What is the asking price?
The asking price for this property is $1,349,000.
What are key features of this property?
This property features: 3,030 square feet on a 0.07‑acre lot; Victorian masonry residence built in 1850; Potential two‑unit configuration; second‑floor wall addition required
More about this property
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