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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.

More Info

Basic Information

  • Gross Income $226,864
  • Lot Features Corner Lot
  • Mls StatusUnder Agreement
  • Parcel Number M:73 B:B L:15,758043

Tax Information

  • Tax Assessed Value $1,977,800
  • Tax Year 2025
  • Taxes$21,578

Parking

  • Parking Spaces

Rooms

  • Bathroom8
  • Bathrooms Total Decimal 8
  • Bedrooms8
  • Full Bath8

Basic Information

  • List Price$2,850,000
  • MLS Number73493634
  • Modification Date05/11/2026
  • Property SubType5-9 Family
  • Purchase Contract Date05/11/2026

Location

  • Address15 Walnut Street
  • Building Number15
  • CountyMiddlesex
  • NeighborhoodUnion Square
  • StateMA
  • StreetWalnut Street
  • SubdivisionUnion Square
  • TownSomerville
  • Zip02143

Building

  • BasementUnfinished
  • Building Area Units Square Feet
  • Construction Materials Frame
  • FoundationStone, Brick/Mortar
  • Levels 3
  • Rooms24
  • Stories3
  • Units8
  • Year Built1906
  • Year Built Details Actual
  • Year Built Source Public Records

Property

  • Acreage0.14

Exterior

  • RoofSlate

Utilities

  • Electric Expense 880
  • Sewer Public Sewer
  • Water Source Public

Property Information

  • Building Area Source Public Records
  • Living Area 5,210
  • Lot Size Square Feet 6,300
  • Lot Size Units Acres
  • Square Feet5,210

Amenities

  • Amenities
    • Bike Path
    • Conservation Area
    • Highway Access
    • House of Worship
    • Laundromat
    • Medical Facility
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • Tennis Court(s)
    • University
    • Walk/Jog Trails
  • Other AmenitiesBasement, Tennis

Other

  • Date Listed03/30/2026
  • Farm Land Area Units Square Feet

Map Location

Driving Directions

Listed by Kelleher - Pentore Team of Horvath & Tremblay

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