Property Record Card Massachusetts

139 Prospect St #5, Acton — property record card

Condo NL MDL-0 built in 2007 in Acton, assessed at $7,800,600 for fiscal year 2026; last sold for $875,000 on October 30, 2025.

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

Parcel

Location139 Prospect St #5, Acton MA 01720
Map and parcel IDF2-129 F2_129_105
UseCondo NL MDL-0 (use code 1021)
CountyMiddlesex

Valuation — fiscal year 2026

Building$7,748,800
Land$0
Other$51,800
Total assessed$7,800,600

Building

Year built2007
StyleTown House
Living area2,617 ft²
Rooms6
Units13

Last recorded sale

Price$875,000
DateOctober 30, 2025
DeedRegistry of Deeds book 84810, page 597

13 assessor accounts on this parcel

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

AddressAccountUseAssessedLast sale
139 Prospect StF2_129_MOther, Open Space$0nominal ($0)
February 12, 2008
139 Prospect St #1F2_129_101Condo NL MDL-0$760,000$553,000
May 26, 2017
139 Prospect St #2F2_129_102Condo NL MDL-0$753,500$680,000
August 22, 2022
139 Prospect St #3F2_129_103Condo NL MDL-0$267,800$154,400
June 26, 2008
139 Prospect St #4F2_129_104Condo NL MDL-0$763,000$489,000
February 3, 2015
139 Prospect St #5F2_129_105Condo NL MDL-0$839,300$875,000
October 30, 2025
139 Prospect St #6F2_129_106Condo NL MDL-0$296,300$171,700
July 10, 2008
139 Prospect St #7F2_129_107Condo NL MDL-0$753,600$560,000
September 12, 2018
139 Prospect St #8F2_129_108Condo NL MDL-0$839,300$566,000
August 4, 2009
139 Prospect St #9F2_129_109Condo NL MDL-0$287,400$183,600
January 29, 2015
139 Prospect St #10F2_129_110Condo NL MDL-0$748,000$780,000
August 19, 2024
139 Prospect St #11F2_129_111Condo NL MDL-0$752,400$500,000
November 24, 2009
139 Prospect St #12F2_129_112Condo NL MDL-0$740,000$752,000
June 9, 2025

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 1 site with an Activity and Use Limitation. All MassDEP sites in Acton.

What this means

Point at the centre of the assessor parcel — not a survey.

Data: Acton 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 139 Prospect 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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