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Mattapan Multifamily Investment Opportunity

640 River Street, Boston, MA 02126

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For Sale

$1,799,000

Multifamily property in Mattapan with rent growth potential.

Type:Multi-family

Property size:

5,448 SF

Price / SF:

$330/SF

HighLights

Multifamily property featuring six 2‑bedroom/1‑bathroom units.
Positioned for rent growth through in‑unit upgrades and releasing.
Convenient access to downtown Boston via the Mattapan Line, bus routes, and Blue Hill Avenue.
Located in Mattapan, a dynamic and in‑demand residential community.
Highly walkable environment near local dining, retail, and community amenities.
Impressive unit layouts that maximize space.

We can help!

Listing Contact

Kevin Benzinger

Learn more

For Sale

$1,799,000

Multifamily property in Mattapan with rent growth potential.

Type:Multi-family

Property size:

5,448 SF

Price / SF:

$330/SF

Added:: Oct 3, 2025
Days on Market:: 252
Last Refresh:: Apr 21 at 6:17 am

Property Features for 640 River Street

General Information

Standard status: Active
Size: 5,448 SF
Property subtype: Multi-family

Building Details

Year Built: 1920

We can help!

Listing Contact

Kevin Benzinger

Listing agent Kevin Benzinger

Listing office Boston Realty Advisors

Listing date Oct 3, 2025

Source Stevebremis

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 Boston Realty Advisors

HighLights

Multifamily property featuring six 2‑bedroom/1‑bathroom units.
Positioned for rent growth through in‑unit upgrades and releasing.
Convenient access to downtown Boston via the Mattapan Line, bus routes, and Blue Hill Avenue.
Located in Mattapan, a dynamic and in‑demand residential community.
Highly walkable environment near local dining, retail, and community amenities.
Impressive unit layouts that maximize space.

Overview

This multifamily property is located in Mattapan, Massachusetts. The building consists of six units, each featuring two bedrooms and one bathroom. The units have layouts that maximize space. The property is positioned for rent growth through in-unit upgrades and releasing. The building's location in Mattapan, a dynamic residential community, provides convenient access to downtown Boston and surrounding areas via the Mattapan Line, multiple bus routes, and Blue Hill Avenue. The property is situated in a walkable environment with access to local dining, retail, and community amenities. The property size is 5,448 square feet.

Local Financial Insights For Apartment 5plus

Simulate Cap Rate and NOI

NOI Build-Up

Component	$	$/SF
Gross rent	$241.9k	$44.40
− Vacancy	−$9.2k	−$1.69
EGI	$232.7k	$42.71
− OpEx	−$104.7k	−$19.22
NOI	$128.0k	$23.49

5,448 SF · lease $44.40/SF/yr · vacancy 3.80% · expense 45.00%

Alternative Uses

Best Use

Apartment 5plus

$1.83M

$1.60M – $2.13M (±1% cap)

NOI $127,985 @ 7.0% cap · market cap 7.11%

Second Best

—

no second resolved use

Theoretical Best

Office A

$4.08M

$3.57M – $4.76M (±1% cap)

NOI $285,562 @ 7.0% cap · market cap 15.87%

Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Current Use by Public Records

Apartment buildings

Suggested Use

Location Insight

Map
Local Demand

City: Boston
County: Suffolk
State: Massachusetts
Longitude: -71.07087
Latitude: 42.35811

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For sale
Apartment buildings
MA
Boston
02126
640 River Street

What type of property is this?

Apartment building - Multifamily property in Mattapan with rent growth potential.

Where is this apartment building located?

The property is located at 640 River Street Boston, MA.

What is the asking price?

The asking price for this property is $1,799,000.

What are key features of this property?

This property features: Multifamily property featuring six 2‑bedroom/1‑bathroom units.; Positioned for rent growth through in‑unit upgrades and releasing.; Convenient access to downtown Boston via the Mattapan Line, bus routes, and Blue Hill Avenue.