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99 Sumner St #321, Boston, MA 02128
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99 Sumner St #321, Boston, MA 02128
99 Sumner St #321, Boston, MA 02128
99 Sumner St #321, Boston, MA 02128
99 Sumner St #321, Boston, MA 02128
99 Sumner St #321, Boston, MA 02128
99 Sumner St #321, Boston, MA 02128

99 Sumner St #321 Boston, MA 02128

$1,350,000

ACTIVE
Beds
2
Baths
2
Sqft
1,195
Year
2021
Days on Site
9 Days
Property Type
Residential
Sub Type
Condominium
Per Square Foot
$1,130
Date Listed
May 27, 2026

Description of 99 Sumner St #321, Boston, MA 02128

Listing details for 99 Sumner St #321, Boston, MA 02128 : 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.
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Listing Updated : 10-21-2026 at 2:03 PM EDT
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Source

MLS PIN, MLS#: 73524677

Open Houses

24
Sat, October
1:00 PM - 2:00 PM

Property History

DateEventPrice
8/22/2026
Listed for Rent
$6,000 -99.6%
$5/sqft
Source:MLS PIN #73567016
5/27/2026
Listed for sale
$1,490,000
$1,247/sqft
Source:MLS PIN #73524677
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The property listing data and information 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 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. The MLS listing information displayed is deemed reliable, but is not guaranteed accurate by the MLS.
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