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99 Sumner St #PH621, 
Boston, MA 02128

$1,625,000

2

Beds

2

Baths

1,197

Sq Ft

Condo

Active

Listed by

The Boston One Team

, 

Angelina Spiropoulos

Serhant

617-250-0559

Last updated:

April 11, 2026, 10:45 AM

MLS#

73493860

Source:

MLSPIN

About This Home

99 Sumner St #PH621

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.

Home Facts

Condo

2 Baths

2 Bedrooms

Built in 2021

Price Summary

1,625,000

$1,357 per Sq. Ft.

MLS #:

73493860

Last Updated:

April 11, 2026, 10:45 AM

Rooms & Interior

Bedrooms

Total Bedrooms:

2

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

2

Interior

Living Area:

1,197 Sq. Ft.

Structure

Structure

Building Area:

1,197 Sq. Ft.

Year Built:

2021

Finances & Disclosures

Finances

Price:

$1,625,000

Price per Sq. Ft:

$1,357 per Sq. Ft.

Source:MLSPIN
The property listing data and information, or the Images, set forth herein were provided to MLS Property Information Network, Inc. from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc. The property listing data and information, and the Images, 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, or as to the accuracy of any of the Images, set forth herein.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.