15 Keswick St 3, Boston — property record card

Residential Condominium built in 1910 in Boston, assessed at $3,294,500 for fiscal year 2023; last sold for $557,000 on May 18, 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	15 Keswick St 3, Boston MA 02215
Map and parcel ID	2100103000 2100103010
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$3,294,500
Land	$0
Total assessed	$3,294,500

Building

Year built	1910
Style	Row Middle
Living area	500 ft²
Rooms	3
Stories	1

Last recorded sale

Price	$557,000
Date	May 18, 2022
Deed	Registry of Deeds book 67660, page 346

9 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
15 Keswick St	2100103000	Other, Open Space	$0	nominal ($0) January 1, 1987
15 Keswick St 1	2100103006	Residential Condominium	$393,100	$380,000 January 15, 2021
15 Keswick St 2	2100103008	Residential Condominium	$444,900	nominal ($9) May 17, 2018
15 Keswick St 3	2100103010	Residential Condominium	$472,200	$555,000 August 24, 2021
15 Keswick St 4	2100103012	Residential Condominium	$451,000	$557,000 May 18, 2022
15 Keswick St 5	2100103014	Residential Condominium	$450,900	$470,000 June 4, 2019
15 Keswick St 6	2100103016	Residential Condominium	$441,800	nominal ($9) December 28, 2012
15 Keswick St B1	2100103002	Residential Condominium	$322,000	nominal ($9) August 3, 2018
15 Keswick St B2	2100103004	Residential Condominium	$318,600	nominal ($9) February 13, 2019

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 4 sites with an Activity and Use Limitation. All MassDEP sites in Boston.

What this means

Assessed 71% 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 15 Keswick St 3

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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