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.
This home has been viewed 1 time
Last Checked: April 5th, 2026 at 5:53am (Source: MLS PIN #73493860)
Garage Parking
Air Conditioning
Waterview
Association Pool
Lead Paint Free
General Information for 99 Sumner St, Boston MA 02128
Listing ID73493860
Property TypeCondominium
Price1625000 ($1357.56/SqFt)
Building Style2/3 Family
CityBoston
CountySuffolk
MLS AreaEast Boston's Jeffries Point
Neighborhood(s)
Total Parking4 (2 Garage)
Unit Level6
Levels in Unit1
Year Built2021
Year Built SourcePublic Records
Year Built DetailsActual
Building Construction StatusReady for Occupancy
ZoningCD
Unit Features for 99 Sumner St, Boston MA 02128
Approximate Living Area Total1197
Living Area Includes BasementNo
Rooms6
Bedrooms2
Primary En Suite BathroomYes
BasementFull
Cooling1, Split
LaundryArchway
Fireplaces
Outdoor Space
FlooringTile
Electric
Appliances
Condo Association Features for 99 Sumner St, Boston MA 02128
Pet PolicyNot Allowed
Building ManagementDeveloper Advisory Board
Building Construction StatusReady for Occupancy
Number of Units107
Year Built2021
Year Built DetailsActual
Year Built SourcePublic Records
WaterPublic
SewerPublic Sewer
Parking Features1
Building AmenitiesBeach Rights
Disclosures for 99 Sumner St, Boston MA 02128
Lead PaintNone
UFFI
Living Area Includes BasementNo
Living Area Disclosure
Building Area SourcePlans
Special Listing Conditions
ExclusionsNo
Compensation Based On
Documents Available
Financial Information for 99 Sumner St, Boston MA 02128
Association Fee
Optional Fee0
Association Fee IncludesLandscaping
Optional Fee Includes
Association Fee FrequencyMonthly
Assessed Value$1,168,200
Real Estate Tax13528
Tax Year2025
Location Information for 99 Sumner St, Boston MA 02128
Neighborhood(s)
MLS AreaEast Boston's Jeffries Point
Area AmenitiesWalk/jog Trails
Contact Information for 99 Sumner St, Boston MA 02128