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99 Sumner St #623
East Boston - Boston, MA ID #73480474
Property Description
Welcome home to this beautifully appointed, professionally designed penthouse residence—perfectly suited for a busy city lifestyle. Enjoy the ease of newer construction living paired with full-service concierge and premier amenities.This is the only alcove studio in the building featuring deeded garage PARKING and upgraded glass bedroom doors. Thoughtful customizations—including designer shades, upgraded lighting, and bespoke paint finishes—create a refined and sophisticated living space.Residents enjoy exceptional amenities, including a golf simulator and theater room, an expansive entertainment lounge with catering kitchen, and seamless access to an outdoor patio—ideal for hosting and relaxing alike.From your home, take in breathtaking sunsets and sweeping views of the Boston skyline and Boston Harbor. All of this is just minutes from the MBTA, acclaimed local dining, the water taxi, and nearby parks—placing the very best of the city right at your doorstep.
Additional Details
- Status: ACT
- Type: Condo, Condominium
- Style: Mid-Rise
- Area: East Boston
- Zip Code: 02128
- HOA Fee: $650
- Taxes: 6,450
- Living Levels: 1
- Unit Level: 6
Parking
- Garage: 1
- Garage Capacity: 1
- Parking: Under, Deeded
- Parking Spaces: 1
Rooms/Dimensions
- Total Units: 107
- Total Floors: 1
- Total Rooms: 3
Building Info
The Mark - East Boston Waterfront
Type: Building
Neighborhood: East Boston
City: Boston, Massachusetts
Listings.
-
sale
(4)4 Units for sale
Average asking price: $969/sqft
Unit Price Beds/Baths Sqft Price/Sqft Maint 
312 $1,029,000 2 / 2 1085 $948/ft $1,111 
101 $730,000 1 / 1 821 $889/ft $977 
305 $625,000 1 / 1 722 $866/ft $688 
623 $599,999 1 / 1 452 $1,327/ft $650 -
rent
(1)1 Unit for rent
Average asking price: $4/sqft
Unit Price Beds/Baths Sqft Price/Sqft Maint 
306 $3,500 1 / 1 778 $4/ft -- -
pending
(9)Unit Price Beds/Baths Sqft Price/Sqft Maint 
621 $1,359,000 2 / 2 1197 $1,135/ft $1,114 
404 $1,119,000 2 / 2 1137 $984/ft $1,040 
311 $929,000 2 / 2 1126 $825/ft $759 
PH 606 $875,000 1 / 1 778 $1,125/ft $646 
414 $679,000 1 / 1 718 $946/ft $482 
301 $569,900 1 / 1 630 $905/ft $404 
413 $500,000 1 433 $1,155/ft $355 
407 $445,100 1 447 $996/ft $314 
203 $429,000 1 455 $943/ft $304 -
sold/
rented (21)Unit Price Beds/Baths Sqft Price/Sqft Maint 
217 $950,000 2 / 2 1137 $836/ft $943 
102 $735,000 1 / 1 842 $873/ft $900 
409 $715,000 1 / 1 698 $1,024/ft $598 210 $682,000 1 / 1 740 $922/ft $493 
209 $674,900 1 / 1 723 $933/ft $552 
507 $490,000 1 / 1 445 $1,101/ft $423 
311 $4,250 2 / 2 1128 $4/ft -- 411 $4,100 2 / 2 1126 $4/ft -- 311 $3,800 2 / 2 1126 $3/ft -- 
419 $3,500 1 / 1 690 $5/ft -- 
315 $3,395 1 / 1 778 $4/ft -- 
419 $3,200 1 / 1 690 $5/ft -- 
410 $3,100 1 / 1 740 $4/ft -- 
314 $3,300 1 / 1 718 $5/ft -- 
223 $2,700 1 / 1 445 $6/ft -- 
423 $2,500 1 / 1 445 $6/ft -- 
313 $2,500 1 / 1 433 $6/ft -- 
413 $2,500 1 / 1 431 $6/ft -- 
208 $2,500 1 445 $6/ft -- 
413 $2,500 1 / 1 431 $6/ft -- 
303 $2,400 1 / 1 455 $5/ft --
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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 Cheri Meckley of Steve Bremis Realty Group. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations or warranties as to the accuracy of this information.
The information in this listing was gathered from third party resources including the seller and public records. Listing information provided courtesy of Cheri Meckley of Steve Bremis Realty Group. MLS Property Information Network, Inc. and its subscribers disclaim any and all representations or warranties as to the accuracy of this information.