99 Sumner St, Boston MA 02128

Boston, MA 02128

$1.5M

2 BD · 2 BA · 1,197 sf · Built 2021

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The residence

Residence 621 at The Mark offers 2 bedrooms, a den, 2 baths, and 1,197 square feet of beautifully designed waterfront living, with two garage parking spaces and two storage units included. The open-concept layout features a chef's kitchen with Bosch appliances, quartz countertops, and upgraded cabinetry, all flowing across hardwood floors to a living space built for both everyday ease and effortless entertaining. The Mark is a full-service luxury building: 24-hour concierge, private terrace, fireplace lounge, billiards room, library, fitness center, conference room, and pet spa. Everything you need, without ever leaving the building. Downtown Boston is minutes away by ferry, Blue Line, or a quick drive. Logan Airport is moments from your door, making this a rare city residence that truly serves those with a dynamic lifestyle. Tallship, waterfront dining, and green space are all moments away. This is Boston waterfront living at its finest.

At a glance

Property type: Condominium
Status: Active
Year built: 2021
Living area: 1,197 sf
MLS#: 8deb015eda2ddbcfc5a9cc218615304c
Beds · Baths: 2 · 2

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

$1.5M

Indicative conversion — settlement always in USD.

Private Showing

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Listing courtesy of Serhant · 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 Sep 19, 2026

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