Nathan Long
Coldwell Banker Realty - Cambridge
(857) 829-6314
38 Total Sales
4 in Prospect Hill
$850K - $1.2M Price Range
21 Stone Ave Unit 21 Somerville, MA 02143
Prospect Hill Neighborhood
2
Beds
1
Bath
1,021
Sq Ft
1900
Built
Highlights
- Property is near public transit and schools
- Wood Flooring
- Patio
- Somerville High School Rated A-
- Jogging Path
- 3-minute walk to Prospect Hill Park
About This Home
As of June 2026A rare opportunity to own a home just steps from Union Square, one of Somerville’s most vibrant and historic destinations, located only a quarter mile from the Green Line station. Nestled on a quiet side street at the base of Prospect Hill, where the first American flag was raised in 1776, 21 Stone combines neighborhood charm with urban convenience. From the private entry, you’re welcomed into an open light-filled living and dining space, where tall ceilings and large windows set a warm, inviting tone. The kitchen is both stylish and functional, with a southeast facing breakfast nook that captures the morning light. Additional perks include private laundry and storage in the basement, an off-street parking space, and shared patio ideal for outdoor gatherings. With award winning restaurants, cafés, and markets just around the corner, this home offers modern comfort rooted in the rich history and energy of Union Square.
Last Agent to Sell the Property
Berkshire Hathaway HomeServices Warren Residential Listed on: 04/13/2026
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Property Details
Home Type
- Condominium
Est. Annual Taxes
- $4,245
Year Built
- Built in 1900
HOA Fees
- $250 Monthly HOA Fees
Home Design
- Entry on the 1st floor
- Frame Construction
- Shingle Roof
Interior Spaces
- 1,021 Sq Ft Home
- 1-Story Property
- Wood Flooring
Kitchen
- Range
- Freezer
- Dishwasher
Bedrooms and Bathrooms
- 2 Bedrooms
- 1 Full Bathroom
Laundry
- Dryer
- Washer
Parking
- 1 Car Parking Space
- Off-Street Parking
- Deeded Parking
Utilities
- Window Unit Cooling System
- 1 Heating Zone
- Heating System Uses Natural Gas
- Baseboard Heating
- Heating System Uses Steam
Additional Features
- Patio
- Property is near public transit and schools
Listing and Financial Details
- Assessor Parcel Number 4587370
Community Details
Overview
- Association fees include water, sewer, insurance, reserve funds
- 3 Units
Amenities
- Common Area
- Shops
- Laundry Facilities
Recreation
- Park
- Jogging Path
- Bike Trail
Pet Policy
- Pets allowed on a case-by-case basis
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Prospect Hill, MA
-
Nathan Long
-
Barbara Wales
Barbara Wales
Engel & Volkers Newton
(781) 512-8233
103 Total Sales
1 in Prospect Hill
$865,000 Price
-
Brian Caluori
Brian Caluori
Gibson Sotheby's International Realty
(781) 488-7488
90 Total Sales
1 in Prospect Hill
$825,000 Price
-
The Young Group
The Young Group
Leopold & McMasters Realty
(339) 333-8140
78 Total Sales
1 in Prospect Hill
$756,000 Price
-
Paul Connolly
Paul Connolly
1M Realty LLC
(339) 300-9513
40 Total Sales
3 in Prospect Hill
$680K - $1.2M Price Range
-
Kiki Williams
Kiki Williams
Coldwell Banker Realty - Newton
(857) 386-7165
15 Total Sales
1 in Prospect Hill
$1,335,000 Price
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 06/11/2026 06/11/26 | Sold | $836,000 | -1.5% | $819 / Sq Ft |
| 05/05/2026 05/05/26 | Pending | -- | -- | -- |
| 04/13/2026 04/13/26 | For Sale | $849,000 | -- | $832 / Sq Ft |
Source: MLS Property Information Network (MLS PIN)
Agents Affiliated with this Home
-
The Moving Great Boston Team
TB
Seller's Agent in 2026
The Moving Great Boston Team
Berkshire Hathaway HomeServices Warren Residential
(617) 682-9661
14 in this area
201 Total Sales
-
Jacqueline Vienneau
Seller Co-Listing Agent in 2026
Jacqueline Vienneau
Berkshire Hathaway HomeServices Warren Residential
(603) 231-0089
5 in this area
53 Total Sales
-
Abigail Ojemann
AO
Buyer's Agent in 2026
Abigail Ojemann
Compass
(617) 645-3407
1 in this area
8 Total Sales
Map
Source: MLS Property Information Network (MLS PIN)
MLS Number: 73500433
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
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 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 or leasing 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 or leasing. 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.
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