138 Mason Ter 2, Brookline — property record card

Residential Condominium built in 1922 in Brookline, assessed at $3,332,400 for fiscal year 2027; last sold for $1,635,000 on December 8, 2025.

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

Parcel

Location	138 Mason Ter 2, Brookline MA 02446
Map and parcel ID	086-35-00 086-35-02
Use	Residential Condominium (use code 102)
Zoning	T-5
County	Norfolk

Valuation — fiscal year 2027

Building	$3,332,400
Land	$0
Total assessed	$3,332,400

Building

Year built	1922
Style	DECKER CONDO
Living area	1,941 ft²
Rooms	7
Stories	2

Last recorded sale

Price	$1,635,000
Date	December 8, 2025
Deed	Registry of Deeds book 42814, page 349

2 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
138 Mason Ter 1	086-35-01	Residential Condominium	$1,549,100	$1,635,000 December 8, 2025
138 Mason Ter 2	086-35-02	Residential Condominium	$1,783,300	$1,280,000 June 24, 2014

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 0 sites with an Activity and Use Limitation. All MassDEP sites in Brookline.

What this means

Assessed 10% below the median residential condominium in Brookline ($3,706,500, 1,424 parcels).
The last sale price is 51% 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: Brookline assessor file for fiscal year 2027, 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 138 Mason Ter 2

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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