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2-Unit Duplex with Private Porches
New
For Sale
$569,500

24 Columbia Avenue, Brunswick, ME 04011

Multi-Family, Brunswick, ME

Property Size2,106 SF
Lot Size0.22 Acres
Price / SF$270.42
Days on Market2

Property Features for 24 Columbia Avenue

General Information

Property type Residential Multi Family
Property subtype Other
Zoning GR9
Bathrooms 2
Full bathrooms 2
Rooms Bathroom 1, Bathroom 2, Basement
Patio and Porch features Deck, Porch
Interior features 1st Floor Bedroom
Lot features Open, Level, Sidewalks, Intown, Near Town, Neighborhood
Standard status Active
Size 2,106 SF
Lot size 0.22 Acres

Taxes and HOA fees

Tax Year 26
Tax Annual Amount 6467

Utilities

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

Amenities

private porch
shared storage area

Building Details

Year built 1921
Number of units 2
Flooring type Tile, Hardwood
Building materials Wood Frame, Shingle Siding
Roof type Shingle
Architectural style Federal
Additional Structures Outbuilding
Listing Agency: Portside Real Estate Group
Listed By: Sarah Singer Ellen Domingos
Added: Sep 25 Last Checked: Sep 26 at 4:06PM
MLS# 1681361

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 1921 in the Federal style, this duplex contains two residences, each configured with two bedrooms and one bathroom. The property totals 2,106 square feet on a 0.22-acre lot. Hardwood and tile flooring, a shingle roof, and individual porches are among its features; the roof was replaced in 2025. A shared storage area serves both units, and the property has GR9 zoning.

The property is near Bowdoin College and downtown Brunswick, with restaurants, cafes, shops, and parks in the surrounding area. Public water and sewer serve the property.

Key Highlights

  • Two units, each with 2 bedrooms and 1 bathroom
  • 2,106 square feet on a 0.22‑acre lot
  • Roof replaced in 2025

Financial Insights

Estimated NOI and Cap Rate

NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$37,216
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
6.53%
Suggested Prices Based on Cap Rates Cap rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$744,320 $744.3K
Cap Rate 7%
$531,657 $531.7K
Cap Rate 9%
$413,511 $413.5K
Market Conditions
NOI Build-Up for 2,106 SF Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent. EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs. OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements. NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$56.9K $27.00/SF
− Vacancy
−$3.7K −$1.76/SF
EGI
$53.2K $25.25/SF
− OpEx
−$15.9K −$7.57/SF
NOI
$37.2K $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 rates vary significantly by property type, market, and asset quality. Typical U.S. stable-market ranges: Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+) Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand) Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically) Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher) Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk) Self-Storage — 5.5% to 7.5% Medical Office — 6.0% to 7.5% Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term Rules of thumb: Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%). Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C. Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI. Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$744,320
Cap Rate 7%
$531,657
Cap Rate 9%
$413,511

Alternative Uses

Best Use
Multifamily LT 5
$531.7K
$465.2K – $620.3K (±1% cap)
NOI $37,216 @ 7.0% cap · market cap 6.53%
Second Best
Apartment 5plus
$494.6K
$432.8K – $577.1K (±1% cap)
NOI $34,624 @ 7.0% cap · market cap 6.08%
Theoretical Best
Office A
$578.8K
$506.5K – $675.3K (±1% cap)
NOI $40,518 @ 7.0% cap · market cap 7.11%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Auto Repair Shop Building Supply HVAC Service Auto Parts Store Storage Facility Carpet & Flooring 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

Location Intelligence

Trade Area within ½ mile

516
Businesses Nearby

Demographics for 04011, ME

21,756
Population
9,440
Households
2.3
Avg Household Size
44
Median Age
52%
College-Educated
96%
High-School Grad
46.8 sq mi
ZIP Area
465
Density / Sq Mi
$74,102
Median Household Income
$40,075
Median Earnings
$1,341
Median Rent
$343,600
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 separate residences each include a porch, with shared storage space available to both units.
Where is this duplex located?
The property is located at 24 Columbia Avenue Brunswick, ME.
What is the asking price?
The asking price for this property is $569,500.
What are key features of this property?
This property features: Two units, each with 2 bedrooms and 1 bathroom; 2,106 square feet on a 0.22‑acre lot; Roof replaced in 2025
More about this property
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