42 Joy St 9, Boston — property record card

Residential Condominium built in 1865 in Boston, assessed at $16,839,800 for fiscal year 2023; last sold for $1,330,000 on May 17, 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	42 Joy St 9, Boston MA 02114
Map and parcel ID	0300165000 0300165004
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$16,839,800
Land	$0
Total assessed	$16,839,800

Building

Year built	1865
Style	Row Middle
Living area	1,400 ft²
Rooms	6
Stories	1

Last recorded sale

Price	$1,330,000
Date	May 17, 2022
Deed	Registry of Deeds book 67659, page 125

15 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
38 Joy St 1	0300165016	Residential Condominium	$1,172,100	$1,330,000 May 17, 2022
38 Joy St 2	0300165018	Residential Condominium	$1,147,000	$997,500 April 27, 2015
38 Joy St 3	0300165020	Residential Condominium	$992,700	$575,000 October 6, 2008
38 Joy St 4	0300165022	Residential Condominium	$1,073,200	$665,000 April 30, 2008
38 Joy St 6	0300165026	Residential Condominium	$1,073,900	$920,000 April 30, 2015
38 Joy St 7	0300165028	Residential Condominium	$1,419,600	nominal ($9) November 6, 2017
40 Joy St 5	0300165024	Residential Condominium	$1,073,900	$1,150,000 April 15, 2022
40 Joy St 12	0300165010	Residential Condominium	$945,600	$637,000 January 12, 2012
42 38 Joy St	0300165000	Other, Open Space	$0	nominal ($0) January 1, 1987
42 Joy St 8	0300165002	Residential Condominium	$1,655,100	$1,600,000 September 18, 2020
42 Joy St 9	0300165004	Residential Condominium	$1,697,600	$1,580,000 September 15, 2016
42 Joy St 10	0300165006	Residential Condominium	$1,049,600	$665,000 December 29, 2005
42 Joy St 11	0300165008	Residential Condominium	$958,100	$925,000 December 30, 2021
42 Joy St 13	0300165012	Residential Condominium	$1,000,700	$989,000 June 23, 2017
42 Joy St 14	0300165014	Residential Condominium	$1,580,700	nominal ($9) January 11, 2006

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): 2 active tier-classified 21E sites and 2 sites with an Activity and Use Limitation. All MassDEP sites in Boston.

What this means

Assessed 774% 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 42 Joy St 9

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.

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