11 Prospect St 1, Boston — property record card

Residential Condominium built in 1890 in Boston, assessed at $3,210,100 for fiscal year 2023; last sold for $1,317,500 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	11 Prospect St 1, Boston MA 02129
Map and parcel ID	0202834000 0202834002
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$3,210,100
Land	$0
Total assessed	$3,210,100

Building

Year built	1890
Style	Semi-Det
Living area	1,842 ft²
Rooms	6
Stories	1
Units	4

Last recorded sale

Price	$1,317,500
Date	May 17, 2022
Deed	Registry of Deeds book 67658, page 79

4 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
11 Prospect St	0202834000	Other, Open Space	$0	nominal ($9) November 17, 2020
11 Prospect St 1	0202834002	Residential Condominium	$1,164,700	$1,145,000 March 12, 2021
11 Prospect St 2	0202834004	Residential Condominium	$922,600	$938,000 March 29, 2021
11 Prospect St 3	0202834006	Residential Condominium	$1,122,800	$1,317,500 May 17, 2022

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

What this means

Assessed 67% 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 11 Prospect 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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