
Active
99 Sumner St #321
Boston, MA 02128
Residential · Active · MLS #73524677
Listing Courtesy of Urban Circle Realty | Sherean Azarmi
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MLS PIN data
About this home
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.
Property information
Details at a glance
Interior
- Rooms
- 6
- Heating
- Central, Forced Air, Individual, Unit Control
- Cooling
- Central Air, Individual, Unit Control
- Flooring
- Wood, Tile
Building
- Style
- Condominium
- Year built
- 2021
- Garage
- 2
- Parking
- 2
Land & utilities
- Water
- Public
- Sewer
- Public Sewer
- Waterfront
- Y
- Zoning
- CD
Financial
- Annual taxes
- $6,420
- Assessment year
- 2026
- HOA fee
- 1567
Listing history
Price and status timeline
- New
$6,000 · Aug 22, 2026
- Exp
$6,000 · Jul 22, 2025
- Exp
$1,575,000 · Apr 28, 2025
Property value estimate
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Comparable sales
Recent properties for context


7 Beech Street #302

58 Kent #U404
Photo insights
Condition signals
Generated from listing photography; not a substitute for an inspection.
Local market context
How this home compares in East Boston's Jeffries Point
Active neighborhood listing statistics from MLS PIN as of September 6, 2026. Asking prices are not completed-sale values.
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Common questions
About 99 Sumner St #321
Can I schedule a private showing?
Yes. Request a tour of 99 Sumner St #321 and a Bean Group agent will help coordinate an available time with the listing side.
Can you help me evaluate this property?
Yes. We can discuss condition, comparable sales, offer strategy and the questions worth asking before you decide whether to proceed.
Are property documents available?
Availability varies by property and source. Request the documents you need and we will help obtain what is available.




