8 Riverside St #G-1, Watertown — property record card

Residential Condominium built in 1962 in Watertown, assessed at $39,866,100 for fiscal year 2026; last transferred November 5, 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	8 Riverside St #G-1
Map and parcel ID	906 4 0
Use	Residential Condominium (use code 1020)
County	Middlesex

Valuation — fiscal year 2026

Building	$39,707,100
Land	$0
Other	$159,000
Total assessed	$39,866,100

Building

Year built	1962
Style	CONDO-FLAT
Living area	775 ft²
Rooms	4
Units	106

Last recorded sale

Price	nominal ($100)
Date	November 5, 2025
Deed	Registry of Deeds book 84841, page 116

106 assessor accounts on this parcel

Condominium units or several buildings share one parcel; each has its own assessment (first 60 shown).

Address	Account	Use	Assessed	Last sale
8 Riverside St 1-1	906 4 1003	Residential Condominium	$385,700	$325,000 October 4, 2017
8 Riverside St 1-2	906 4 1004	Residential Condominium	$404,700	$263,000 January 30, 2017
8 Riverside St 1-3	906 4 1005	Residential Condominium	$369,200	$380,000 August 24, 2023
8 Riverside St 2-1	906 4 1007	Residential Condominium	$385,700	$67,000 November 27, 1996
8 Riverside St 2-2	906 4 1008	Residential Condominium	$359,600	$330,000 October 31, 2022
8 Riverside St 3-1	906 4 1011	Residential Condominium	$385,700	nominal ($10) September 30, 2014
8 Riverside St 3-3	906 4 1013	Residential Condominium	$388,200	$385,000 June 10, 2021
8 Riverside St 3-4	906 4 1014	Residential Condominium	$369,200	$264,900 October 14, 2015
8 Riverside St #1-4	906 4 1006	Residential Condominium	$369,200	$371,000 August 7, 2023
8 Riverside St #2-3	906 4 1009	Residential Condominium	$369,200	$205,000 June 27, 2014
8 Riverside St #2-4	906 4 1010	Residential Condominium	$369,200	nominal ($100) November 22, 2024
8 Riverside St #3-2	906 4 1012	Residential Condominium	$385,700	nominal ($100) November 22, 2024
8 Riverside St #G-1	906 4 0	Residential Condominium	$473,200	$360,000 December 18, 2024
8 Riverside St G-2	906 4 1001	Residential Condominium	$352,700	$342,000 March 31, 2023
8 Riverside St G-4	906 4 1002	Residential Condominium	$369,200	$49,900 January 10, 1996
8 Riverside St Rear 1-1	906 4 1017	Residential Condominium	$374,600	$73,750 January 3, 1996
8 Riverside St Rear 1-2	906 4 1018	Residential Condominium	$372,300	nominal ($1) April 11, 2024
8 Riverside St Rear 1-3	906 4 1019	Residential Condominium	$442,700	$218,000 December 27, 2012
8 Riverside St Rear 1-4	906 4 1020	Residential Condominium	$362,300	nominal ($1) May 1, 2009
8 Riverside St Rear 2-1	906 4 1021	Residential Condominium	$372,300	nominal ($1) July 26, 2022
8 Riverside St Rear 2-3	906 4 1023	Residential Condominium	$362,300	nominal ($100) June 21, 2024
8 Riverside St Rear 3-1	906 4 1025	Residential Condominium	$372,300	$188,000 June 29, 2001
8 Riverside St Rear 3-3	906 4 1027	Residential Condominium	$367,900	$219,900 June 23, 2015
8 Riverside St Rear 3-4	906 4 1028	Residential Condominium	$362,300	$76,000 September 6, 1996
8 Riverside St Rear # 2-2	906 4 1022	Residential Condominium	$372,300	$460,000 July 18, 2025
8 Riverside St Rear # 2-4	906 4 1024	Residential Condominium	$362,300	$117,000 December 30, 1998
8 Riverside St Rear # 3-2	906 4 1026	Residential Condominium	$372,300	nominal ($100) November 22, 2024
8 Riverside St Rear #G-1	906 4G 1	Residential Condominium	$372,300	nominal ($100) November 22, 2024
8 Riverside St Rear G-2	906 4 1015	Residential Condominium	$362,300	$175,000 September 20, 2011
8 Riverside St Rear G-4	906 4 1016	Residential Condominium	$362,300	$179,000 February 25, 2002
10 Riverside St 1-1	906 4 1032	Residential Condominium	$389,000	nominal ($1) January 21, 2010
10 Riverside St 1-2	906 4 1033	Residential Condominium	$372,300	nominal ($1) June 30, 2022
10 Riverside St 1-4	906 4 1035	Residential Condominium	$372,300	nominal ($1) March 25, 2024
10 Riverside St 2-1	906 4 1036	Residential Condominium	$389,000	$279,000 March 18, 2005
10 Riverside St 2-3	906 4 1038	Residential Condominium	$376,000	$262,000 July 29, 2005
10 Riverside St 2-4	906 4 1039	Residential Condominium	$385,000	$352,900 December 15, 2020
10 Riverside St 3-1	906 4 1040	Residential Condominium	$389,000	nominal ($1) February 28, 2020
10 Riverside St 3-3	906 4 1042	Residential Condominium	$376,000	$399,000 August 28, 2020
10 Riverside St #1-3	906 4 1034	Housing, Other (Charitable Org.)	$389,900	$260,000 April 29, 2016
10 Riverside St #2-2	906 4 1037	Residential Condominium	$389,000	$74,000 August 21, 1995
10 Riverside St #3-2	906 4 1041	Residential Condominium	$389,000	$425,000 May 11, 2023
10 Riverside St #3-4	906 4 1043	Residential Condominium	$372,300	nominal ($100) November 22, 2024
10 Riverside St #G-4	906 4 1031	Residential Condominium	$372,300	nominal ($100) November 22, 2024
10 Riverside St G-1	906 4 1029	Residential Condominium	$389,000	nominal ($0) August 20, 1986
10 Riverside St G-2	906 4 1030	Residential Condominium	$372,300	$199,000 October 24, 2002
12 Riverside St 1-2	906 4 1048	Residential Condominium	$389,000	$135,000 December 1, 1999
12 Riverside St 2-1	906 4 1051	Residential Condominium	$389,000	$86,000 May 29, 1992
12 Riverside St 2-2	906 4 1052	Residential Condominium	$372,300	$213,000 March 29, 2010
12 Riverside St 2-3	906 4 1053	Residential Condominium	$372,300	$195,000 May 12, 2010
12 Riverside St 3-1	906 4 1055	Residential Condominium	$389,000	$379,000 December 14, 2018
12 Riverside St 3-2	906 4 1056	Residential Condominium	$372,300	$200,000 June 10, 2009
12 Riverside St 3-3	906 4 1057	Residential Condominium	$372,300	nominal ($1) April 3, 2020
12 Riverside St 3-4	906 4 1058	Residential Condominium	$372,300	$284,200 March 31, 2016
12 Riverside St #1-1	906 4 1047	Residential Condominium	$389,000	nominal ($100) November 22, 2024
12 Riverside St #1-3	906 4 1049	Residential Condominium	$372,300	$430,000 June 4, 2025
12 Riverside St #1-4	906 4 1050	Residential Condominium	$372,300	$44,000 September 17, 2010
12 Riverside St #2-4	906 4 1054	Residential Condominium	$369,000	$274,900 August 17, 2015
12 Riverside St #G-1	906 4 1044	Residential Condominium	$389,000	nominal ($1) October 19, 2010
12 Riverside St #G-3	906 4 1046	Residential Condominium	$372,300	nominal ($100) November 22, 2024
12 Riverside St G-2	906 4 1045	Residential Condominium	$372,300	$360,000 October 22, 2021

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 10 sites with an Activity and Use Limitation. All MassDEP sites in Watertown.

What this means

Assessed 2627% 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 8 Riverside St #G-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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