51 Mt Vernon St 5, Boston — property record card

Residential Condominium built in 1870 in Boston, assessed at $6,807,100 for fiscal year 2023; last sold for $1,190,000 on February 28, 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	51 Mt Vernon St 5, Boston MA 02108
Map and parcel ID	0501690000 0501690012
Use	Residential Condominium (use code 102)
County	Suffolk

Valuation — fiscal year 2023

Building	$6,807,100
Land	$0
Total assessed	$6,807,100

Building

Year built	1870
Style	Row Middle
Living area	1,567 ft²
Rooms	7
Stories	1

Last recorded sale

Price	$1,190,000
Date	February 28, 2022
Deed	Registry of Deeds book 67236, page 291

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
51 Mt Vernon St	0501690000	Other, Open Space	$0	nominal ($0) January 1, 1987
51 Mt Vernon St 1	0501690002	Residential Condominium	$1,337,400	nominal ($9) October 28, 2016
51 Mt Vernon St 2	0501690006	Residential Condominium	$817,100	nominal ($9) October 23, 1989
51 Mt Vernon St 3	0501690008	Residential Condominium	$978,500	$595,000 March 15, 2001
51 Mt Vernon St 4	0501690010	Residential Condominium	$1,016,300	$1,190,000 February 28, 2022
51 Mt Vernon St 5	0501690012	Residential Condominium	$1,663,900	$480,000 May 25, 1994
51 Mt Vernon St 6	0501690004	Residential Condominium	$993,900	nominal ($9) October 7, 2015

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 253% 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 51 Mt Vernon St 5

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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