1666 Washington St # 3, Boston MA 02118

Boston, MA 02118

$1.4M

3 BD · 3 BA · 1,646 sf · 0.04 ac · Built 1899

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The residence

Inviting. Spacious. Rarely available.This 3-bed & 3-bath penthouse duplex offers 1,646 sq ft of thoughtfully designed living space in the heart of Boston’s South End—where true 3 bedroom homes remain in short supply.The first level is dedicated to rest and privacy, featuring a spacious primary suite with a walk-in closet and en-suite full bath, a generously sized second bedroom, and a versatile 3rd bedroom—ideal for guests or a home office.Upstairs, the main living level is designed for both comfort and entertaining, with an open living & dining area highlighted by exposed brick, high ceilings, skylights, and abundant natural light. The modern kitchen features stainless steel appliances, while a wood-burning stove adds warmth and character throughout. Additional features include central air, in-unit W&D, and a private deck overlooking lovely Worcester Square. The living area flows seamlessly to the deck, creating an ideal setting for entertaining. Pet friendly.

At a glance

Property type: Condominium
Status: Active
Year built: 1899
Lot size: 0.04 acres
Living area: 1,646 sf
MLS#: 209fbf2af127db430cb1ff21c4382234
Beds · Baths: 3 · 3

Location

Boston, MA.

Boston keeps its history in plain sight — brick, granite and gaslight along streets laid down long before the grid. Life here runs on short distances: the harbour, the Common, the theatre district and the river all within a walk of one another.

Estimated Monthly Payment+

$7K/mo

Approximate · principal & interest only

Down payment · 25%Interest rate · 6.75%Term · 30 years

Display Currency

$1.4M

Indicative conversion — settlement always in USD.

Private Showing

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Listing courtesy of Gibson Sotheby's International Realty · MLSPIN

MLS Property Information Network.The property listing data and information set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors, landlords and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information set forth herein.

Listings updated Oct 17, 2026

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