172 -A1 River St, Waltham — property record card

Residential Condominium built in 1983 in Waltham, assessed at $4,584,700 for fiscal year 2026; last sold for $268,000 on October 22, 2025.

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

Parcel

Location	172 -A1 River St
Map and parcel ID	R070 012 0015 011
Use	Residential Condominium (use code 102)
County	Middlesex

Valuation — fiscal year 2026

Building	$4,584,700
Land	$0
Total assessed	$4,584,700

Building

Year built	1983
Style	CONDO-GRDN
Living area	636 ft²
Rooms	3
Stories	3
Units	16

Last recorded sale

Price	$268,000
Date	October 22, 2025
Deed	Registry of Deeds book 84771, page 283

16 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
172 -A1 River St	R070 012 0015 011	Residential Condominium	$299,900	$200,200 August 19, 2016
172 -A2 River St	R070 012 0015 012	Residential Condominium	$285,900	$156,500 February 3, 2015
172 -A3 River St	R070 012 0015 013	Residential Condominium	$285,900	nominal ($1) January 13, 2009
172 -A4 River St	R070 012 0015 014	Residential Condominium	$285,900	$250,500 March 28, 2019
172 -A5 River St	R070 012 0015 015	Residential Condominium	$285,900	nominal ($1) June 17, 2013
172 -A6 River St	R070 012 0015 016	Residential Condominium	$278,000	$210,300 January 4, 2023
172 -A7 River St	R070 012 0015 017	Residential Condominium	$286,500	$258,000 April 30, 2018
172 -A8 River St	R070 012 0015 018	Residential Condominium	$286,500	nominal ($100) June 30, 2023
172 -B1 River St	R070 012 0015 021	Residential Condominium	$279,400	$59,500 April 13, 1998
172 -B2 River St	R070 012 0015 022	Residential Condominium	$287,300	$278,000 October 1, 2018
172 -B3 River St	R070 012 0015 023	Residential Condominium	$285,900	$281,500 September 2, 2022
172 -B4 River St	R070 012 0015 024	Residential Condominium	$294,600	nominal ($1) July 16, 2024
172 -B5 River St	R070 012 0015 025	Residential Condominium	$285,600	nominal ($1) May 28, 2025
172 -B6 River St	R070 012 0015 026	Residential Condominium	$285,600	$93,500 May 1, 1987
172 -B7 River St	R070 012 0015 027	Residential Condominium	$285,900	$268,000 October 22, 2025
172 -B8 River St	R070 012 0015 028	Residential Condominium	$285,900	$260,000 April 30, 2018

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): 5 active tier-classified 21E sites and 3 sites with an Activity and Use Limitation. All MassDEP sites in Waltham.

What this means

Assessed 169% above the median residential condominium in Waltham ($1,705,450, 642 parcels).
The last sale price is 94% below the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.

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

Data: Waltham 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 172 -A1 River St

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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