Boston Luxury Condos and Apartments
355 Boylston St / (617) 233-5800

99 Sumner St #321

East Boston - Boston, MA ID #73524677

Property Description

Residence 321 at The Mark, offers sophisticated waterfront living with panoramic harbor and skyline views. This spacious 2 bedroom + den home features oversized windows, a private balcony with stunning sunset views, sleek contemporary design complemented by custom motorized window treatments throughout. The open-concept layout is ideal for modern living and entertaining. Rarely available, the residence also includes TWO garage parking spaces and TWO private storage units. Residents enjoy luxury amenities including 24/7 concierge, fitness center with flex studio, harbor view terrace with grills and fire pits, resident lounge, golf simulator, conference room, and pet spa. Located in East Boston’s vibrant waterfront neighborhood, The Mark is just a 2-minute walk to Maverick Station on the MBTA Blue Line, steps from water taxis and the MBTA Ferry, and minutes from Logan Airport. Enjoy a waterfront lifestyle with refined living, exceptional convenience, and picture-perfect views.

Additional Details

  • Status: NEW
  • Type: Condo, Condominium
  • Style: Mid-Rise
  • Area: East Boston
  • Zip Code: 02128
  • HOA Fee: $1,567
  • Taxes: 6,420
  • Living Levels: 1
  • Unit Level: 3

Parking

  • Garage: 2
  • Garage Capacity: 2
  • Parking: Attached, Garage Door Opener, Garage
  • Parking Spaces: 2

Rooms/Dimensions

  • Total Units: 107
  • Total Floors: 1
  • Total Rooms: 6
The Mark - East Boston Waterfront
Building Info

The Mark - East Boston Waterfront

Type: Building

Neighborhood: East Boston

City: Boston, Massachusetts

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Content © 2026 MLS Property Information Network, Inc.
The information in this listing was gathered from third party resources including the seller and public records. Listing information provided courtesy of Sherean Azarmi of Urban Circle Realty. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations or warranties as to the accuracy of this information.