Property Record Card Massachusetts

10 Williams St #137, Watertown — property record card

Residential Condominium built in 1973 in Watertown, assessed at $31,490,989 for fiscal year 2026; last sold for $250,000 on August 29, 2025.

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

Location10 Williams St #137
Map and parcel ID102 12 0 102 12 1136
UseResidential Condominium (use code 1020)
CountyMiddlesex

Valuation — fiscal year 2026

Building$31,304,400
Land$0
Other$130,195
Total assessed$31,490,989

Building

Year built1973
StyleCONDO-FLAT
Living area1,100 ft²
Rooms5
Units75

Last recorded sale

Price$250,000
DateAugust 29, 2025
DeedRegistry of Deeds book 176, page 11

75 assessor accounts on this parcel

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

AddressAccountUseAssessedLast sale
10 Williams St102 12 1137IMPUTED - Accessory Land with Improvement$1,500nominal ($1)
December 23, 2008
10 Williams St 11102 12 1065Residential Condominium$360,700$205,000
May 2, 2011
10 Williams St 13102 12 1066Residential Condominium$480,100$258,000
February 21, 2012
10 Williams St 21102 12 1068Residential Condominium$371,600nominal ($10)
January 13, 2016
10 Williams St 23102 12 1070Residential Condominium$479,100nominal ($1)
February 18, 2005
10 Williams St 24102 12 1071Residential Condominium$474,300$265,500
January 27, 2012
10 Williams St 28102 12 1075Residential Condominium$371,600nominal ($1)
April 2, 2004
10 Williams St 30102 12 1140Residential Condominium$435,800nominal ($1)
October 25, 2023
10 Williams St 32102 12 1078Residential Condominium$394,700$372,500
October 29, 2019
10 Williams St 34102 12 1080Residential Condominium$439,300nominal ($1)
June 26, 2015
10 Williams St 35102 12 1081Residential Condominium$435,300$420,000
June 14, 2018
10 Williams St 37102 12 1083Residential Condominium$358,500$320,000
May 16, 2017
10 Williams St 38102 12 1084Residential Condominium$371,600nominal ($1)
September 20, 2024
10 Williams St 39102 12 1085Residential Condominium$436,300$468,000
May 23, 2018
10 Williams St 40102 12 1086Residential Condominium$436,300$78,500
November 8, 1984
10 Williams St 41102 12 1087Residential Condominium$370,100nominal ($100)
March 14, 2024
10 Williams St 43102 12 1089Residential Condominium$487,800$265,000
March 12, 2014
10 Williams St 45102 12 1091Residential Condominium$436,300$343,500
June 18, 2015
10 Williams St 47102 12 1093Residential Condominium$371,600nominal ($10)
April 26, 2019
10 Williams St 48102 12 1094Residential Condominium$377,300$360,000
February 23, 2021
10 Williams St 49102 12 1095Residential Condominium$467,200$455,500
October 28, 2019
10 Williams St 50102 12 1096Residential Condominium$439,300$470,000
January 15, 2021
10 Williams St 51102 12 1097Residential Condominium$371,600nominal ($100)
June 6, 2022
10 Williams St 52102 12 1098Residential Condominium$386,100$410,000
December 13, 2021
10 Williams St 55102 12 1101Residential Condominium$435,300$305,000
April 12, 2013
10 Williams St 57102 12 1103Residential Condominium$371,600$385,000
August 22, 2019
10 Williams St 60102 12 1106Residential Condominium$436,300nominal ($100)
December 23, 2021
10 Williams St 62102 12 1108Residential Condominium$386,100$163,100
February 28, 2011
10 Williams St 63102 12 1109Residential Condominium$491,700$436,000
December 5, 2016
10 Williams St 64102 12 1110Residential Condominium$435,300nominal ($1)
November 19, 2012
10 Williams St 67102 12 1113Residential Condominium$371,600$214,000
June 27, 2012
10 Williams St 69102 12 1115Residential Condominium$436,300$267,000
December 14, 2006
10 Williams St 70102 12 1116Residential Condominium$491,889$327,500
May 16, 2014
10 Williams St 72102 12 1118Residential Condominium$386,100nominal ($1)
September 9, 2015
10 Williams St 73102 12 1119Residential Condominium$479,100nominal ($1)
September 27, 2012
10 Williams St 74102 12 1120Residential Condominium$435,300$480,000
July 27, 2020
10 Williams St 75102 12 1121Residential Condominium$435,300$500,000
October 6, 2020
10 Williams St 81102 12 1127Residential Condominium$371,600nominal ($1)
July 7, 2021
10 Williams St 84102 12 1130Residential Condominium$435,300nominal ($100)
May 7, 2019
10 Williams St 85102 12 1131Residential Condominium$437,300$350,000
November 24, 2014
10 Williams St 86102 12 1132Residential Condominium$479,100nominal ($1)
January 31, 2011
10 Williams St 87102 12 1133Residential Condominium$349,800$380,000
July 15, 2022
10 Williams St 89102 12 1135Residential Condominium$435,300$475,000
July 11, 2018
10 Williams St #10102 12 1064Residential Condominium$352,200$410,000
September 14, 2022
10 Williams St #20102 12 1067Residential Condominium$436,300$335,000
July 5, 2006
10 Williams St #22102 12 1069Residential Condominium$361,400$375,000
January 5, 2024
10 Williams St #25102 12 1072Residential Condominium$439,300$450,000
July 18, 2023
10 Williams St #26102 12 1073Residential Condominium$479,100nominal ($1)
February 25, 2021
10 Williams St #27102 12 1074Residential Condominium$371,600nominal ($1)
January 28, 2020
10 Williams St #29102 12 1076Residential Condominium$435,300$220,000
January 14, 2002
10 Williams St #31102 12 1077Residential Condominium$348,300nominal ($100)
July 5, 2011
10 Williams St #33102 12 1079Residential Condominium$482,300$556,000
April 28, 2022
10 Williams St #36102 12 1082Residential Condominium$480,100$106,000
September 25, 1995
10 Williams St #42102 12 1088Residential Condominium$387,100$130,500
July 25, 1986
10 Williams St #44102 12 1090Residential Condominium$510,100$527,000
June 3, 2024
10 Williams St #46102 12 1092Residential Condominium$483,500nominal ($10)
December 30, 2011
10 Williams St #53102 12 1099Residential Condominium$480,100$101,196
October 11, 1996
10 Williams St #54102 12 1100Residential Condominium$435,300nominal ($1)
March 3, 2014
10 Williams St #56102 12 1102Residential Condominium$480,100$494,000
July 9, 2020
10 Williams St #58102 12 1104Residential Condominium$371,600nominal ($100)
November 8, 2024

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

What this means

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 10 Williams St #137

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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