14 Union St #3, Cambridge — property record card

Residential Condominium built in 1880 in Cambridge, assessed at $2,419,600 for fiscal year 2026; last sold for $575,000 on July 30, 2025.

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

Parcel

Location	14 Union St #3, Cambridge MA 02139
Map and parcel ID	77-82 77-82-3
Use	Residential Condominium (use code 102)
County	Middlesex

Valuation — fiscal year 2026

Building	$2,419,600
Land	$0
Total assessed	$2,419,600

Building

Year built	1880
Style	TWO-FLOORS
Living area	1,630 ft²
Rooms	6
Stories	2
Units	4

Last recorded sale

Price	$575,000
Date	July 30, 2025
Deed	Registry of Deeds book 84429, page 0222

4 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
14 Union St	77-82	CONDO-BLDG	$0	$493,000 May 26, 2000
14 Union St #1	77-82-1	Residential Condominium	$515,900	$575,000 July 30, 2025
14 Union St #2	77-82-2	Residential Condominium	$614,100	$525,000 June 16, 2017
14 Union St #3	77-82-3	Residential Condominium	$1,289,600	nominal ($1) June 2, 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): 3 active tier-classified 21E sites and 5 sites with an Activity and Use Limitation. All MassDEP sites in Cambridge.

What this means

Assessed 17% below the median residential condominium in Cambridge ($2,924,050, 2,506 parcels).
The last sale price is 76% below the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.
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: Cambridge 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 14 Union St #3

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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