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Mansard-Style Triplex
New
For Sale
$1,395,000

128 Summer St, Watertown, MA 02472

This three-family property pairs historic architecture with off-street parking and access to Watertown Square.

Property Size3,822 SF
Lot Size0.29 Acres
Days on Market5

Property Features for 128 Summer St

General Information

Standard status Active
Size 3,822 SF
Total Parking Spaces 6
Lot size 0.29 Acres
Property subtype 3 Family - 3 Units Up/Down

Additional Details

Highway Access Yes
Multifamily Units 3

Taxes and HOA fees

Annual Taxes $14,884

Building Details

Building Size 3,822 SF
Year Built 1857
Construction Mansard-style
Listing Agency: All Star Realty, Inc.
Listed By: Jerry Mazzeo
Source: Downtownbostonrealty
Added: Oct 1 Changed: Oct 5 Last Checked: Oct 4 at 5:35PM

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 All Star Realty, Inc.

Investment Insights

Based on property information with market context.

Dating to 1857, this Mansard-style triplex contains more than 3,800 square feet of living area. The property sits on a 12,550-square-foot lot and includes six off-street parking spaces.

Watertown Square is a few blocks away, with restaurants, cafés, a public library, banks, pharmacies, and everyday services in the area. Exit 127 of the Massachusetts Turnpike at Newton Corner is roughly one mile from the property, providing a connection toward Cambridge, Downtown Boston, and Logan International Airport.

Key Highlights

  • Three‑family Mansard‑style property built in 1857
  • More than 3,800 square feet of living area
  • 12,550‑square‑foot lot

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$80,875
Cap Rate
5.80%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,617,500 $1.6M
Cap Rate 7%
$1,155,357 $1.2M
Cap Rate 9%
$898,611 $898.6K
Market Conditions
NOI Build-Up for 3,822 SF
Gross rent
$121.5K $31.80/SF
− Vacancy
−$6.0K −$1.57/SF
EGI
$115.5K $30.23/SF
− OpEx
−$34.7K −$9.07/SF
NOI
$80.9K $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%
$1,617,500
Cap Rate 7%
$1,155,357
Cap Rate 9%
$898,611

Alternative Uses

Best Use
Multifamily LT 5
$1.16M
$1.01M – $1.35M (±1% cap)
NOI $80,875 @ 7.0% cap · market cap 5.80%
Second Best
Apartment 5plus
$1.09M
$950.6K – $1.27M (±1% cap)
NOI $76,045 @ 7.0% cap · market cap 5.45%
Theoretical Best
Office A
$2.26M
$1.98M – $2.64M (±1% cap)
NOI $158,383 @ 7.0% cap · market cap 11.35%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

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Current Use

Triplexes

Suggested Use

Top Pick Grocery & Convenience Store Food Market Parking Lot & Garage Clothing & Fashion Store Bar & Pub Locksmith

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

3
Residential units
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

1,707
Businesses Nearby

Demographics for 02472, MA

35,392
Population
17,069
Households
2.1
Avg Household Size
39
Median Age
67%
College-Educated
95%
High-School Grad
4.0 sq mi
ZIP Area
8,848
Density / Sq Mi
$123,383
Median Household Income
$77,537
Median Earnings
$2,356
Median Rent
$737,600
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?
Triplex - This three-family property pairs historic architecture with off-street parking and access to Watertown Square.
Where is this triplex located?
The property is located at 128 Summer St Watertown, MA.
What is the asking price?
The asking price for this property is $1,395,000.
What are key features of this property?
This property features: Three‑family Mansard‑style property built in 1857; More than 3,800 square feet of living area; 12,550‑square‑foot lot
More about this property
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