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Two-Unit Ranch Duplex
For Sale
$685,000

18-20 Dingley Court, Portland, ME 04103

Multi-Family, Portland, ME

Property Size1,864 SF
Lot Size0.25 Acres
Price / SF$367.49
Days on Market22

Property Features for 18-20 Dingley Court

General Information

Property type Residential Multi Family
Property subtype Single Family Residence
Zoning Residential
Bathrooms 2
Full bathrooms 2
Rooms Bathroom 2, Basement, Bathroom 1
Parking features Off Street
Patio and Porch features Deck
Interior features 1st Floor Bedroom
Fencing Fenced
Basement Full, Unfinished
Lot features Open, Level, Near Shopping, Near Town, Near Public Transit
Standard status Active
Size 1,864 SF
Lot size 0.25 Acres

Taxes and HOA fees

Tax Year 2026
Tax Annual Amount 7498

Utilities

Sewer type Public Sewer
Heating system Oil, Hot Water(Heating), Baseboard
Water source Public

Building Details

Year built 1969
Floors in Building 1
Number of units 2
Flooring type Vinyl, Carpet
Building materials Wood Frame, Vinyl Siding
Roof type Shingle
Architectural style Ranch
Listing Agency: Signature Homes Real Estate Group, LLC
Listed By: Matthew Lamontagne Gena Lamontagne
Added: Sep 15 Changed: Sep 25 Last Checked: Oct 6 at 11:06AM
MLS# 1680640

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.

This 1,864-square-foot, two-unit ranch was built in 1969 on a 0.25-acre lot. The residences include three-bedroom, one-bathroom and two-bedroom, one-bathroom layouts. The larger unit has a back deck, while the other features an open living, dining, and kitchen area. Interior details include vinyl and carpet flooring, and the property has off-street parking and fencing. Public water and sewer serve the property.

Set at the end of a dead-end street in Portland, the property is within walking distance of schools and near the city’s amenities. Both units are on the first floor, and the building has a basement.

Key Highlights

  • Two‑unit duplex with 1,864 square feet of building area
  • Three‑bedroom, one‑bathroom unit and separate two‑bedroom, one‑bathroom unit
  • 0.25‑acre lot; built in 1969

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$32,940
Cap Rate
4.81%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$658,800 $658.8K
Cap Rate 7%
$470,571 $470.6K
Cap Rate 9%
$366,000 $366.0K
Market Conditions
NOI Build-Up for 1,864 SF
Gross rent
$50.3K $27.00/SF
− Vacancy
−$3.3K −$1.76/SF
EGI
$47.1K $25.25/SF
− OpEx
−$14.1K −$7.57/SF
NOI
$32.9K $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%
$658,800
Cap Rate 7%
$470,571
Cap Rate 9%
$366,000

Alternative Uses

Best Use
Multifamily LT 5
$470.6K
$411.8K – $549.0K (±1% cap)
NOI $32,940 @ 7.0% cap · market cap 4.81%
Second Best
Apartment 5plus
$437.8K
$383.1K – $510.8K (±1% cap)
NOI $30,645 @ 7.0% cap · market cap 4.47%
Theoretical Best
Office A
$512.3K
$448.3K – $597.7K (±1% cap)
NOI $35,863 @ 7.0% cap · market cap 5.24%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Building Supply Electrical Service HVAC Service Garden Center Computer & Electronic Repair Auto Parts 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.

Lease Details

2
Residential units
Multi-tenant
Tenancy
Yes
Paved road access

Location Intelligence

Trade Area within ½ mile

848
Businesses Nearby

Demographics for 04103, ME

31,185
Population
14,336
Households
2.2
Avg Household Size
40
Median Age
58%
College-Educated
97%
High-School Grad
10.2 sq mi
ZIP Area
3,057
Density / Sq Mi
$90,682
Median Household Income
$48,640
Median Earnings
$1,571
Median Rent
$421,800
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 - Two distinct floor plans include a three-bedroom residence and a separate two-bedroom unit.
Where is this duplex located?
The property is located at 18-20 Dingley Court Portland, ME.
What is the asking price?
The asking price for this property is $685,000.
What are key features of this property?
This property features: Two‑unit duplex with 1,864 square feet of building area; Three‑bedroom, one‑bathroom unit and separate two‑bedroom, one‑bathroom unit; 0.25‑acre lot; built in 1969
More about this property
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