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15 Walnut StSomerville, MA 02143

For Sale

$2,850,000

Smart Buyer Rebate $14,250

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.

Listed by John Pentore

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Horvath & Tremblay

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781-776-4004

Listed by Dennis Kelleher

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Horvath & Tremblay

Listed by Tess Kohanski

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Horvath & Tremblay

Listed by Kelleher - Pentore Team

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Horvath & Tremblay

Last updated April 03, 2026

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Source: MLSPin #73493634

Listing Facts

  • TypeMulti-family
  • NeighborhoodProspect Hill
  • Bedrooms8
  • Bathrooms8
  • Days on Prevu31
  • Taxes$21,578/year
  • Size5,210 sqft
  • Price per sqft$547

Amenities

  • Parking

Location

Mortgage Calculator

Listing History

03/30/2026
Listed by Horvath & Tremblay
$2,850,000

Property Details for 15 Walnut St

Association

Amenities

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

Exterior

Construction

  • Number Of Units Total: 8
  • Roof: Slate
  • Stories: 3
  • Stories Total: 3
  • Year Built: 1906
  • Year Built Details: Actual
  • Construction Materials: Frame

Measurements

  • Building Area Total: 5,210
  • Building Area Units: Square Feet
  • Lot Features: Corner Lot
  • Lot Size Acres: 0.14
  • Lot Size Area: 0
  • Lot Size Square Feet: 6,300
  • Lot Size Units: Acres

Financial

Residential Income

  • Gross Income: $226,864.00
  • Operating Expense: $47,868.00

Taxes

  • Parcel Number: M:73 B:B L:15,758043
  • Tax Annual Amount: $21,578.00
  • Tax Assessed Value: $1,977,800.00
  • Tax Year: 2025

Interior

Measurements

  • Living Area: 5,210
  • Living Area Source: Public Record

Rooms

  • Basement: Unfinished
  • Bathrooms Full: 8
  • Bathrooms Total Integer: 8
  • Bedrooms Total: 8
  • Rooms Total: 24

Utilities

Equipment

  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this multi-family home have?

There are 8 bedrooms and 8 bathrooms in this multi-family home at 15 Walnut St.

What are the annual taxes for 15 Walnut St?

Annual taxes for this multi-family home are estimated at $21,578.

How does 15 Walnut St compare to other multi-family homes in Prospect Hill?

This multi-family home is listed 46% above the average price for multi-family homes in Prospect Hill and has been on the market for 10 more days than the typical home in this area.

What is the square footage on this multi-family home?

According to the MLS, this listing is 5,210 sqft.

15 Walnut St is a 8-bedroom, 8-bath multi-family home for sale in Somerville MA 02143. Available on Prevu for 31 days at $2,850,000. This property features 5,210 square feet of living space, located in Somerville. The median listing price for multi-family homes in this area is $1,950,000. Property amenities include parking. View other multi-family home listings in Somerville.

The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, are for the personal, non commercial use of consumers having a good faith interest in purchasing, leasing or renting listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing, leasing or renting. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the Images, set forth herein.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.