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Renovated Two-Unit Duplex

15 Foster Street, Arlington, MA 02474

For Sale
$2,839,000

Fully renovated two-residence property with private outdoor areas and flexible finished lower-level space.

Property Size4,648 SF
Price / SF$610.80
Days on Market56

Property Features for 15 Foster Street

General Information

Standard status Active
Size 4,648 SF
Property subtype Commercial

Taxes and HOA fees

Annual Taxes $99,999,999

Building Details

Year Built 1921
Listing Agency: Coldwell Banker Realty - Boston
Listed By: Shaundize Moosavizadeh
Source: Kiklisre
Added: Sep 16 Changed: Oct 31 Last Checked: Nov 10 at 8:20AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Coldwell Banker Realty - Boston

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Investment Insights

Based on property information with market context.

This 4,648-square-foot duplex, built in 1921, has been fully renovated with two residences, each offering 4 bedrooms, 2 full bathrooms, 2 half bathrooms, and four finished levels. Main-level layouts include foyers, powder rooms, custom kitchens with stone countertops and induction cooktops, plus open living and dining areas. Upper floors provide three additional bedrooms, walk-in closets, and full bathrooms with double vanities. Each residence also includes a top-floor primary suite with an en-suite bathroom, walk-in closet, and private roof deck, along with finished lower-level space suitable for a family room, home office, gym, or playroom.

The property is located at 15 Foster Street in Arlington, less than half a mile from downtown restaurants, cafés, shops, and a bike path. Both residences include private outdoor space, adding flexibility to the multi-unit configuration.

Key Highlights

  • Two‑unit duplex totaling 4,648 square feet
  • Each residence includes 4 bedrooms, 2 full bathrooms, and 2 half bathrooms
  • Four finished levels in each residence

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$98,353
Cap Rate
3.46%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,967,060 $2.0M
Cap Rate 7%
$1,405,043 $1.4M
Cap Rate 9%
$1,092,811 $1.1M
Market Conditions
NOI Build-Up for 4,648 SF
Gross rent
$147.8K $31.80/SF
− Vacancy
−$7.3K −$1.57/SF
EGI
$140.5K $30.23/SF
− OpEx
−$42.2K −$9.07/SF
NOI
$98.4K $21.16/SF
Area
Middlesex County, MA
Vacancy
4.94%
Lease Rate
$31.80 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,967,060
Cap Rate 7%
$1,405,043
Cap Rate 9%
$1,092,811

Alternative Uses

Best Use
Multifamily LT 5
$1.41M
$1.23M – $1.64M (±1% cap)
NOI $98,353 @ 7.0% cap · market cap 3.46%
Second Best
Apartment 5plus
$1.32M
$1.16M – $1.54M (±1% cap)
NOI $92,480 @ 7.0% cap · market cap 3.26%
Theoretical Best
Office A
$2.75M
$2.41M – $3.21M (±1% cap)
NOI $192,612 @ 7.0% cap · market cap 6.78%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

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Open Analytics

Location Intelligence

Trade Area within ½ mile

1,588
Businesses Nearby

Demographics for 02474, MA

28,551
Population
12,541
Households
2.3
Avg Household Size
40
Median Age
74%
College-Educated
98%
High-School Grad
3.1 sq mi
ZIP Area
9,210
Density / Sq Mi
$139,199
Median Household Income
$80,498
Median Earnings
$2,157
Median Rent
$887,000
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Average Price Trend$/SF for Duplexes in Middlesex County, MA

$430 Jul
$429 Aug
$425 Sep
$411 Oct

Properties on Market for Duplexes in Middlesex County

Jul
Aug
Sep
Oct

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025

Frequently Asked Questions

What type of property is this?
Duplex - Fully renovated two-residence property with private outdoor areas and flexible finished lower-level space.
Where is this duplex located?
The property is located at 15 Foster Street Arlington, MA.
What is the asking price?
The asking price for this property is $2,839,000.
What are key features of this property?
This property features: Two‑unit duplex totaling 4,648 square feet; Each residence includes 4 bedrooms, 2 full bathrooms, and 2 half bathrooms; Four finished levels in each residence
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