15 Walnut St, Somerville, MA 02143 - Photo 1

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$2,850,000 Just Listed

For Sale
Active
Multi-Family
8 Units
8 Total Beds
0.14 Acres
Updated 2 days ago

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Property Description

The multi-story building contains four (4) 2-Bedroom/1-Bathroom units, one (1) 1-Bedroom/1-Bathroom unit, and three (3) Two-Room Studio units with 5,210 square feet of gross living area in 8,423 square feet of gross area. The Property is situated upon a 0.14-acre parcel. 15 Walnut Street is centrally located in Somerville's dynamic Union Square neighborhood. The property has been meticulously maintained under current ownership with capital improvements throughout including complete renovations to units 15 Walnut #3 and Sanborn 1R, 2L and 3L. All units feature separate utilities with tenants responsible for their own heat, hot water and electricity. Six (6) of the units have gas fired, forced hot water baseboard and/or radiator heat. 15 Walnut #3 features HVAC (gas) and Sanborn 3 features electric for heating and cooling. Additional building amenities include a coin-op laundry room in the basement.

Full Property Details

Full Property Details for 15 Walnut St

General

Price: $2,850,000
Taxes: $21,578 (2025)
Status: Active
Type: Multi-Family
MLS ID: 73493634
Updated: 3/30/2026
Added to Site: 3 day(s) ago

Rooms

Bathrooms

Total Bathrooms: 8
Full Bathrooms: 8

Bedrooms

Total Bedrooms: 8

Location

County: Middlesex

Structural Information

Basement: Yes
Stories/Levels: 3
Square Feet: 5,210
Year Built: 1906

Lot Features

Lot Size (Acres): 0.14

Financial Considerations

Tax Amount: $21,578
Tax Year: 2025

Disclosures and Reports

Property ID: M:73 B:B L:15, 758043

Listed by Horvath & Tremblay, Kelleher - Pentore Team and Dennis Kelleher

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Listing agents

— 15 Walnut St —

Kelleher - Pentore Team

Horvath & Tremblay
Dennis Kelleher

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Schools

Schools serving 15 Walnut St

School District:Somerville School District

Name	Grades	Distance
Albert F. Argenziano School At Lincoln Park 290 Washington Street, Somerville, MA 02143	PK-8	0.2 mi
Capuano Early Childhood Center 150 Glen Street, Somerville, MA 02145	PK-K	0.5 mi
E Somerville Community 50 Cross Street, Somerville, MA 02145	K-8	0.6 mi
Somerville High School 81 Highland Avenue, Somerville, MA 02143	9-12	0.4 mi
Winter Hill Community School 115 Sycamore Street, Somerville, MA 02145	PK-8	0.7 mi
John F. Kennedy Elementary School, Somerville, MA 5 Cherry Street, Somerville, MA 02144	PK-8	1.1 mi
Arthur D. Healey School 5 Meacham Street, Somerville, MA 02145	K-8	1.1 mi
Benjamin G. Brown School 201 Willow Avenue, Somerville, MA 02144	K-6	1.4 mi
West Somerville Neighborhood School 177 Powder House Boulevard, Somerville, MA 02144	PK-8	2.3 mi

Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 15 Walnut St Get Price Alerts and Save Property

Date

Details

Price

Change

Source

3/30/2026

Listed

$2,850,000

1392.15%

MLS

1/31/1994

Sold

$191,000

—

Public Record

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Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History

Tax History for 15 Walnut St

Year

Property Taxes

Change

Tax Assessment

Change

2025

$21,578

$1,977,800

2024

$20,444

$1,943,300

2023

$19,826

$1,917,400

2022

$18,844

$1,851,100

2021

$17,945

$1,761,000

2020

$16,817

-4%

$1,666,700

2019

$17,519

$1,628,200

15%

2018

$16,044

$1,418,600

12%

2017

$14,841

$1,271,700

17%

2016

$13,666

$1,090,700

2015

$13,465

$1,067,800

2014

$12,801

—

$1,011,100

—

View All

Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Estimate the Cost

Estimate the Cost for 15 Walnut St

15 Walnut St, Somerville, MA 02143 (MLS# 73493634) is a Multi-Family property with 8 units containing 8 bedrooms and 8 full bathrooms. 15 Walnut St is currently listed for $2,850,000 and was received on March 30, 2026. Want to learn more about 15 Walnut St? Do you have questions about finding other Multi-Family real estate for sale in Prospect Hill? You can browse all Prospect Hill real estate or contact a Coldwell Banker agent to request more information.

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15 Walnut St Somerville, MA 02143