20 Concord Sq 1, Boston — property record card

Residential Condominium built in 1900 in Boston, assessed at $2,797,500 for fiscal year 2023; last sold for $694,000 on June 3, 2022.

Rebuilt from the Boston assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Boston assessor’s office.

Parcel

Location	20 Concord Sq 1, Boston MA 02118
Map and parcel ID	0402644000 0402644002
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$2,797,500
Land	$0
Total assessed	$2,797,500

Building

Year built	1900
Style	Row Middle
Living area	1,033 ft²
Rooms	6
Stories	1

Last recorded sale

Price	$694,000
Date	June 3, 2022
Deed	Registry of Deeds book 67749, page 177

7 assessor accounts on this parcel

Condominium units or several buildings share one parcel; each has its own assessment.

Address	Account	Use	Assessed	Last sale
20 Concord Sq	0402644000	Other, Open Space	$0	nominal ($0) January 1, 1987
20 Concord Sq 1	0402644002	Residential Condominium	$746,700	nominal ($9) December 29, 1998
20 Concord Sq 2	0402644004	Residential Condominium	$552,100	$694,000 June 3, 2022
20 Concord Sq 3	0402644006	Residential Condominium	$378,400	$393,000 May 20, 2019
20 Concord Sq 4	0402644008	Residential Condominium	$372,800	$142,000 March 12, 2003
20 Concord Sq 5	0402644010	Residential Condominium	$373,900	$359,000 April 2, 2021
20 Concord Sq 6	0402644012	Residential Condominium	$373,600	$330,000 June 6, 2016

What MassDEP has recorded

No tier-classified 21E site and no Activity and Use Limitation is mapped on this parcel.

Within about 500 m (a third of a mile): 6 active tier-classified 21E sites and 6 sites with an Activity and Use Limitation. All MassDEP sites in Boston.

What this means

Assessed 45% above the median residential condominium in Boston ($1,926,500, 10,170 parcels).
Built before 1978: the Massachusetts Lead Law applies when a child under six lives there; ask for any lead inspection or letter of compliance.

Point at the centre of the assessor parcel — not a survey.

Data: Boston assessor file for fiscal year 2023, via MassGIS, retrieved October 30, 2026; MassDEP sites retrieved the same day. Sources and freshness. No owner names are published.

First page of a sample Massachusetts Property Report

The report for 20 Concord Sq 1

This page shows the assessor record and the MassDEP sites on the parcel. The report adds what lies around it: FEMA flood zone, wetlands, Zone II and other water supply protection areas, priority habitat, sewer or septic service, protected open space, and every 21E site within half a mile.

$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)

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