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20 Concord Square

20 Concord Square, Boston, MA 02118
Condo in Columbus
20 Concord Square is a condo located in Columbus, Boston. The building was first built in 1999 and is 27 years old. In total, 20 Concord Square has a total floor area of 1,638 square feet. 20 Concord Square has a total of 400 floors.

Interested in learning more about the building? There are many great amenities and features for residents in the building. There are 2 closings on record, of which we have matching data for 2 listings. In the past 3 years, a listing in this building will typically remain on the market for about 84 days Meaning, listings tend to sell at a median of $1,088 price per square foot. The transaction that took the longest to complete was unit 6, listed on Mar 14, 2016 for $335,000. This particular unit ultimately sold 84 days later for $330,000. The most recent transaction was for unit 6, which was first advertised on Mar 14, 2016, sold for $330,000 on Jun 06, 2016. Fun fact, the oldest transaction we have on record took place on Aug 23, 2007. See the full transaction history for 20 Concord Square below.

Columbus, where 20 Concord Square is located, has a median asking price of $1,199,000 for condo buildings. Meanwhile, the building itself has a median asking price of $335,000. For interested buyers, that means the building's median asking price is around 0.72% below the neighborhood's median asking price for condos. Which is great news as a buyer may end up finding some relatively affordable units in this building compared to other condo buildings in the neighborhood.

Unfortunately, there are currently no active listings within the building but our inventory of available units for sale is constantly updating in real time. Check back frequently for updates.

Building Features

Parking

On-Street Parking

Facilities

Laundry Room

Location

Near Public Transit

Pet Policy

Dogs Allowed / Cats Allowed

7 Past Sales

Date Unit Beds Baths Sqft Price Closed Listed By
20250910 Unit 2
09/10/2025
2
2 Bed
1 Bath
566 ft²
$715,000
bedrooms
2 Bed
bathrooms
1 Bath
square feet
566 ft²
-
-
Bell Petrini Group
Coldwell Banker Realty - Boston
20220427 Unit 2
04/27/2022
2
2 Bed
1 Bath
566 ft²
$650,000
bedrooms
2 Bed
bathrooms
1 Bath
square feet
566 ft²
$694,000 +6.77%
06/03/2022
The Biega + Kilgore Team
Compass
20210125 Unit 5
01/25/2021
5
Studio
1 Bath
333 ft²
$368,000
bedrooms
Studio
bathrooms
1 Bath
square feet
333 ft²
$359,000 -2.45%
04/01/2021
Julianne Li
Lotus Realty Group
20190425 Unit 3
04/25/2019
3
1 Bed
1 Bath
332 ft²
$385,000
bedrooms
1 Bed
bathrooms
1 Bath
square feet
332 ft²
$393,000 +2.08%
05/20/2019
Marie Presti
Barrett Sotheby's Int'l Realty
20160314 Unit 6
03/14/2016
6
Studio
1 Bath
308 ft²
$335,000
bedrooms
Studio
bathrooms
1 Bath
square feet
308 ft²
$330,000 -1.49%
06/06/2016
Brett J. Star
Star Residential, LLC
20091014 Unit 3
10/14/2009
3
Studio
1 Bath
332 ft²
$219,000
bedrooms
Studio
bathrooms
1 Bath
square feet
332 ft²
$206,000 -5.94%
03/04/2010
Candice Macoul
SDG Real Estate LLC
20070329 Unit 6
03/29/2007
6
Studio
1 Bath
308 ft²
$229,900
bedrooms
Studio
bathrooms
1 Bath
square feet
308 ft²
$228,000 -0.83%
08/23/2007
Dean M. Casacca


Building Info

Overview

    General

  • Year Built: 1999
  • Effective Year Built: 1999
  • Building Count: 1
  • Bedroom Count: 0
  • Building Condition: 6
  • Building Quality: 0
  • Construction Type: 0
  • Building Style: 16
  • Exterior Walls Type: 2
  • Interior Walls Type: 0
  • Roof Shape Type: 11
  • Roof Cover Type: 6
  • Floor Count: 400
  • Living Units: 6
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 0
  • Parking Space Count: 0
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 1,638
  • Total Building Area: 1,638
  • Gross Building Area: 1,638
  • Building Area: 1,638
  • Building Area Measurement: T

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 0
  • Heated Square Feet: 1,638
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: E
  • Land Acres: 0000000038
  • Standard Land Use Code: 9000
  • County Land Use Code: 990

Neighborhood

  • School District Name: Boston School District
  • Census Tract: 070802

Zoning

  • Zoning: CM

Geography

  • Parcel: CBOS W:04 P:02644 S:000
  • Municipality: BOSTON-CENTRAL BOSTON
  • Latitude: 42.3411
  • Longitude: -71.079

    Address

  • Full Address: 20 Concord Sq
  • Address - House Number: 20
  • Address - Street Name: Concord
  • Address - Suffix Type: Sq
  • State: MA
  • City Name: Boston
  • Carrier Code: C052
  • 4-Digit Zip Code: 3148
  • Zip Code: 02118

Valuation

    Tax

  • Tax Year: 2024
  • Tax Amount: $0

    Assessments Valuation

  • Assessed Year: 2023
Data used for valuation calculations is provided by RealtyHop, and other third party sources

About South End



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Frequently Asked Questions

What neighborhood is 20 Concord Square located in?
The 20 Concord Square is a condo located in the neighborhood of Columbus in South End, Boston.
What is the average sales price for listings in 20 Concord Square?
The average sales price for units in 20 Concord Square is $335,000 , or $1,088/sqft. currently.