18 Cooper St 1, Boston — property record card

Residential Condominium built in 1899 in Boston, assessed at $3,931,800 for fiscal year 2023; last sold for $795,000 on July 8, 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	18 Cooper St 1, Boston MA 02113
Map and parcel ID	0302506000 0302506002
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$3,931,800
Land	$0
Total assessed	$3,931,800

Building

Year built	1899
Style	Row End
Living area	1,477 ft²
Rooms	5
Stories	2

Last recorded sale

Price	$795,000
Date	July 8, 2022
Deed	Registry of Deeds book 67925, page 170

6 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
18 18A Cooper St	0302506000	Other, Open Space	$0	nominal ($0) June 22, 2009
18 Cooper St 1	0302506002	Residential Condominium	$1,032,100	nominal ($9) March 23, 2017
18 Cooper St 2	0302506004	Residential Condominium	$695,000	$661,500 April 8, 2016
18 Cooper St 3	0302506006	Residential Condominium	$760,800	$795,000 May 7, 2021
18 Cooper St 4	0302506008	Residential Condominium	$696,500	$795,000 July 8, 2022
18 Cooper St 5	0302506010	Residential Condominium	$747,400	$740,000 November 29, 2017

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): 4 active tier-classified 21E sites and 8 sites with an Activity and Use Limitation. All MassDEP sites in Boston.

What this means

Assessed 104% 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 18 Cooper St 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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