20 Westerly Street Unit 20A, Wellesley — property record card

Residential Condominium built in 2016 in Wellesley, assessed at $3,420,000 for fiscal year 2026; last sold for $1,875,000 on March 19, 2025.

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

Parcel

Location	20 Westerly Street Unit 20A
Map and parcel ID	123-50 123-50-20A
Use	Residential Condominium (use code 102)
County	Norfolk

Valuation — fiscal year 2026

Building	$3,420,000
Land	$0
Total assessed	$3,420,000

Building

Year built	2016
Style	Condo
Living area	6,514 ft²
Rooms	9
Stories	2

Last recorded sale

Price	$1,875,000
Date	March 19, 2025

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
20 Westerly Street Unit 20A	123-50-20A	Residential Condominium	$1,714,000	$1,875,000 March 19, 2025
20 Westerly Street Unit 20B	123-50-20B	Residential Condominium	$1,706,000	$1,320,000 October 13, 2017

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 3 sites with an Activity and Use Limitation. All MassDEP sites in Wellesley.

What this means

Assessed 9% below the median residential condominium in Wellesley ($3,763,000, 68 parcels).
The last sale price is 45% 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: Wellesley 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 20 Westerly Street Unit 20A

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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