Listing Tools

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.

More Info

Basic Information

  • Bedrooms2
  • Mls StatusActive
  • Bathroom2
  • Parcel Number W:01 P:05403 S:210,1328111
  • Unit NumberPH621

Tax Information

  • Tax Assessed Value $1,168,200
  • Tax Year 2025
  • Taxes$13,528

Parking

  • Parking Spaces2
  • Covered Spaces 2
  • Garage YN Yes
  • Parking Features Under, Deeded

Rooms

  • Bathrooms Total Decimal 2
  • Full Bath2

Basic Information

  • List Price$1,625,000
  • MLS Number73493860
  • Modification Date04/04/2026
  • Property SubTypeCondominium

Location

  • NeighborhoodEast Boston's Jeffries Point
  • SubdivisionEast Boston's Jeffries Point
  • Address99 Sumner Street
  • Building Number99
  • CountySuffolk
  • StateMA
  • StreetSumner Street
  • TownBoston
  • Zip02128

Building

  • Attached Garage YN Yes
  • BasementN
  • Building Area Units Square Feet
  • Common Walls No One Above
  • Construction Materials Brick
  • Entry Level 6
  • Garage Spaces2
  • Rooms6
  • Stories1
  • Utilities For Gas Range
  • Year Built2021
  • Year Built Details Actual
  • Year Built Source Public Records

Interior

  • Flooring Wood

Exterior

  • Exterior Features Balcony, City View(s)

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Heat SystemYes
  • Heating Forced Air
  • Sewer Public Sewer
  • Water Source Public

Property Information

  • Square Feet1,197
  • Building Area Source Plans
  • Living Area 1,197
  • Lot Size Units Acres
  • Property Attached YN Yes
  • Structure Type Mid-Rise
  • View YN Yes

Amenities

  • Amenities
    • Bike Path
    • Highway Access
    • House of Worship
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • University
    • Walk/Jog Trails
  • Association Amenities Hot Water, Fitness Center
  • Other AmenitiesFireplace, Waterfront, Water View
  • PetsYes
  • Security Features Intercom, TV Monitor, Doorman, Concierge

Water Body

  • WaterfrontYes
  • Waterfront Features Waterfront, Harbor

Legal

  • ZoningCD

Other

  • Association Fee $1,565
  • Association Fee Frequency Monthly
  • Association Fee Includes
    • Heat
    • Insurance
    • Maintenance Grounds
    • Maintenance Structure
    • Reserve Funds
    • Security
    • Sewer
    • Snow Removal
    • Water
  • Date Listed03/31/2026
  • Farm Land Area Units Square Feet
  • View Count3

Map Location

Driving Directions

Listed by The Boston ONE Team of Serhant

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from Castles Unlimited. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.