439 Washington St 6 & P12, Brookline — property record card

Residential Condominium built in 1940 in Brookline, assessed at $12,102,900 for fiscal year 2027; last sold for $955,000 on November 21, 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	439 Washington St 6 & P12, Brookline MA 02446
Map and parcel ID	171-55-00 171-55-07
Use	Residential Condominium (use code 102)
County	Norfolk

Valuation — fiscal year 2027

Building	$12,102,800
Land	$0
Other	$100
Total assessed	$12,102,900

Building

Year built	1940
Style	LOW RISE CONDO
Living area	1,541 ft²
Rooms	7
Stories	1

Last recorded sale

Price	$955,000
Date	November 21, 2025
Deed	Registry of Deeds book 42783, page 306

12 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
439 Washington St 1 & P6	171-55-02	Residential Condominium	$1,023,700	$515,000 July 22, 2008
439 Washington St 2 & P18	171-55-03	Residential Condominium	$992,200	$745,000 July 23, 2014
439 Washington St 3	171-55-04	Residential Condominium	$963,000	nominal ($1) May 21, 2015
439 Washington St 4 & P19	171-55-05	Residential Condominium	$1,068,000	$970,000 January 14, 2021
439 Washington St 5	171-55-06	Residential Condominium	$1,011,500	$1,100,000 April 10, 2025
439 Washington St 6 & P12	171-55-07	Residential Condominium	$1,073,200	$1,325,000 November 6, 2023
441 Washington St 1	171-55-08	Residential Condominium	$973,000	nominal ($10) October 2, 2024
441 Washington St 2	171-55-09	Residential Condominium	$886,900	$955,000 November 21, 2025
441 Washington St 3	171-55-10	Residential Condominium	$1,047,400	$289,000 February 12, 1998
441 Washington St 4 & P3	171-55-11	Residential Condominium	$967,900	$890,000 September 10, 2021
441 Washington St 5	171-55-12	Residential Condominium	$1,056,200	nominal ($1) February 14, 2012
441 Washington St 6 & P8	171-55-13	Residential Condominium	$1,039,900	$510,000 November 16, 2010

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

What this means

Assessed 227% above the median residential condominium in Brookline ($3,706,500, 1,424 parcels).
The last sale price is 92% 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 439 Washington St 6 & P12

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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