471 Arsenal St N #14, Watertown — property record card

Residential Condominium built in 1816 in Watertown, assessed at $21,565,400 for fiscal year 2026; last transferred May 6, 2025 for a nominal sum.

Rebuilt from the Watertown assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Watertown assessor’s office.

Parcel

Location	471 Arsenal St N #14
Map and parcel ID	1301 2E 0 1301 2E 14
Use	Residential Condominium (use code 1020)
County	Middlesex

Valuation — fiscal year 2026

Building	$21,559,400
Land	$0
Other	$6,000
Total assessed	$21,565,400

Building

Year built	1816
Style	Townhouse
Living area	1,351 ft²
Rooms	6
Units	36

Last recorded sale

Price	nominal ($100)
Date	May 6, 2025
Deed	Registry of Deeds book 84056, page 542

36 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
471 Arsenal St A 1	1301 2E 1	Residential Condominium	$613,100	$435,000 July 13, 2005
471 Arsenal St B 2	1301 2E 2	Residential Condominium	$608,200	$154,000 July 17, 1991
471 Arsenal St C 3	1301 2E 3	Residential Condominium	$608,200	$485,000 March 12, 2018
471 Arsenal St D 4	1301 2E 4	Residential Condominium	$614,800	$150,000 August 11, 1994
471 Arsenal St E 5	1301 2E 5	Residential Condominium	$608,200	$430,000 November 12, 2004
471 Arsenal St F 6	1301 2E 6	Residential Condominium	$608,200	nominal ($1) February 9, 1996
471 Arsenal St G 7	1301 2E 7	Residential Condominium	$597,900	nominal ($100) August 26, 2021
471 Arsenal St H 8	1301 2E 8	Residential Condominium	$609,100	$380,000 January 11, 2013
471 Arsenal St I 9	1301 2E 9	Residential Condominium	$566,900	nominal ($1) June 13, 2003
471 Arsenal St J 10	1301 2E 10	Residential Condominium	$600,200	$658,000 November 16, 2020
471 Arsenal St K #11	1301 2E 11	Residential Condominium	$600,500	$390,000 July 23, 2007
471 Arsenal St L 12	1301 2E 12	Residential Condominium	$597,900	$340,000 May 23, 2011
471 Arsenal St M 13	1301 2E 13	Residential Condominium	$608,200	$417,000 June 23, 2010
471 Arsenal St N #14	1301 2E 14	Residential Condominium	$781,700	$835,000 February 23, 2023
473 Arsenal St A 29	1301 2E 29	Residential Condominium	$586,500	$379,000 March 28, 2008
473 Arsenal St B 30	1301 2E 30	Residential Condominium	$587,300	nominal ($1) January 5, 2023
473 Arsenal St C #31	1301 2E 31	Residential Condominium	$499,100	$525,000 December 4, 2024
473 Arsenal St D 32	1301 2E 32	Residential Condominium	$585,600	nominal ($1) July 2, 2020
473 Arsenal St E 33	1301 2E 33	Residential Condominium	$421,100	nominal ($1) August 18, 2004
473 Arsenal St F 34	1301 2E 34	Residential Condominium	$528,200	nominal ($1) October 20, 1986
473 Arsenal St G 35	1301 2E 35	Residential Condominium	$599,000	nominal ($1) January 11, 2011
473 Arsenal St H 36	1301 2E 36	Residential Condominium	$581,900	$396,000 April 18, 2008
475 Arsenal St A 28	1301 2E 28	Residential Condominium	$638,400	$424,900 June 27, 2013
475 Arsenal St B 27	1301 2E 27	Residential Condominium	$619,400	nominal ($100) July 25, 2013
475 Arsenal St C 26	1301 2E 26	Residential Condominium	$608,200	$430,000 July 21, 2005
475 Arsenal St D #25	1301 2E 25	Residential Condominium	$611,500	nominal ($100) May 6, 2025
475 Arsenal St E 24	1301 2E 24	Residential Condominium	$608,200	$425,000 October 27, 2014
475 Arsenal St F 23	1301 2E 23	Residential Condominium	$608,200	$249,000 July 12, 1999
475 Arsenal St G 22	1301 2E 22	Residential Condominium	$597,900	nominal ($100) July 26, 2021
475 Arsenal St H 21	1301 2E 21	Residential Condominium	$597,900	nominal ($100) January 17, 2023
475 Arsenal St I 20	1301 2E 20	Residential Condominium	$572,700	nominal ($1) May 1, 2015
475 Arsenal St J 19	1301 2E 19	Residential Condominium	$594,400	$402,500 September 17, 2010
475 Arsenal St K 18	1301 2E 18	Residential Condominium	$597,900	$440,000 September 1, 2015
475 Arsenal St L 17	1301 2E 17	Residential Condominium	$597,900	nominal ($1) November 2, 2018
475 Arsenal St M #16	1301 2E 16	Residential Condominium	$608,200	$390,000 June 30, 2008
475 Arsenal St N 15	1301 2E 15	Residential Condominium	$692,800	$656,000 September 29, 2020

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): 7 active tier-classified 21E sites and 12 sites with an Activity and Use Limitation. All MassDEP sites in Watertown.

What this means

Assessed 1375% above the median residential condominium in Watertown ($1,461,700, 975 parcels).
The last deed was recorded for a nominal sum: a transfer between family members, into a trust or a similar non-market sale. It says nothing about the market value.
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: Watertown assessor file for fiscal year 2026, 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 471 Arsenal St N #14

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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