109 Sewall Ave 401 G14 G15, Brookline — property record card

Residential Condominium built in 2011 in Brookline, assessed at $33,060,100 for fiscal year 2027; last sold for $1,875,000 on September 4, 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	109 Sewall Ave 401 G14 G15, Brookline MA 02446
Map and parcel ID	125-04-05 125-05-16
Use	Residential Condominium (use code 102)
Zoning	M20
County	Norfolk

Valuation — fiscal year 2027

Building	$33,055,400
Land	$0
Other	$4,700
Total assessed	$33,060,100

Building

Year built	2011
Style	LOW RISE CONDO
Living area	2,894 ft²
Rooms	7
Stories	1

Last recorded sale

Price	$1,875,000
Date	September 4, 2025
Deed	Registry of Deeds book 42628, page 136

17 assessor accounts on this parcel

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

Address	Account	Use	Assessed	Last sale
109 Sewall Ave 101 & P10	125-05-09	CONDO	$261,700	nominal ($100) April 17, 2015
109 Sewall Ave 102 & G12	125-05-10	CONDO	$294,600	$174,900 July 20, 2012
109 Sewall Ave 103&PG-8-9	125-05-11	Residential Condominium	$2,411,100	nominal ($100) November 7, 2016
109 Sewall Ave 201 G5 G6	125-05-12	Residential Condominium	$2,294,400	$1,317,500 April 6, 2012
109 Sewall Ave 202 G10G11	125-05-13	Residential Condominium	$2,346,000	$1,365,000 April 6, 2012
109 Sewall Ave 301 G8 G9	125-05-14	Residential Condominium	$2,304,400	$1,317,500 April 6, 2012
109 Sewall Ave 302 G1 2 3	125-05-15	Residential Condominium	$2,415,100	nominal ($10) March 23, 2021
109 Sewall Ave 401 G14 G15	125-05-16	Residential Condominium	$3,563,900	$2,132,500 May 10, 2012
109 Sewall Ave G7	125-05-17	Condominium	$83,600	$95,000 March 3, 2025
115 Sewall Ave 1& P13-14	125-05-01	Residential Condominium	$1,667,000	$1,875,000 September 4, 2025
115 Sewall Ave 2 &P11-12	125-05-02	Residential Condominium	$1,679,800	nominal ($1) October 25, 2012
115 Sewall Ave 3&PG-3G16	125-05-03	Residential Condominium	$2,273,500	$2,250,000 July 30, 2019
115 Sewall Ave 4&PG-1 P15	125-05-04	Residential Condominium	$2,229,900	$2,500,000 March 21, 2025
115 Sewall Ave 5& PG-4-5	125-05-05	Residential Condominium	$2,319,500	$1,310,000 May 6, 2011
115 Sewall Ave 6&PG-2 G4	125-05-06	Residential Condominium	$2,318,800	nominal ($1) September 11, 2015
115 Sewall Ave 7&PG-7 P16	125-05-07	Residential Condominium	$2,278,600	nominal ($1) December 3, 2019
115 Sewall Ave 8&PG-6 G13	125-05-08	Residential Condominium	$2,318,200	$1,398,988 September 4, 2012

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): 0 active tier-classified 21E sites and 2 sites with an Activity and Use Limitation. All MassDEP sites in Brookline.

What this means

Assessed 792% above the median residential condominium in Brookline ($3,706,500, 1,424 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: 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 109 Sewall Ave 401 G14 G15

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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