22 Decatur St #20, Cambridge — property record card

Residential Condominium built in 1930 in Cambridge, assessed at $3,401,400 for fiscal year 2026; last sold for $864,300 on November 22, 2024.

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	22 Decatur St #20, Cambridge MA 02139
Map and parcel ID	94-25 94-25-20
Use	Residential Condominium (use code 102)
County	Middlesex

Valuation — fiscal year 2026

Building	$3,401,400
Land	$0
Total assessed	$3,401,400

Building

Year built	1930
Style	SINGLE
Living area	1,175 ft²
Rooms	6
Stories	2
Units	5

Last recorded sale

Price	$864,300
Date	November 22, 2024
Deed	Registry of Deeds book 83509, page 0317

5 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
22 Decatur St	94-25	CONDO-BLDG	$0	nominal ($0) January 22, 1968
22 Decatur St #20	94-25-20	Residential Condominium	$1,227,000	$650,000 December 24, 2003
22 Decatur St #22/1	94-25-22/1	Residential Condominium	$778,800	$864,300 November 22, 2024
22 Decatur St #22/2	94-25-22/2	Residential Condominium	$694,400	$830,000 October 21, 2021
22 Decatur St #22/3	94-25-22/3	Residential Condominium	$701,200	$920,000 October 25, 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): 1 active tier-classified 21E site and 13 sites with an Activity and Use Limitation. All MassDEP sites in Cambridge.

What this means

Assessed 16% above the median residential condominium in Cambridge ($2,924,050, 2,506 parcels).
The last sale price is 75% 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 22 Decatur St #20

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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