Listing Tools

Bright, well-appointed 1+ den opportunity with parking at The Mark on East Boston's waterfront. Elegant & distinctive interior finishes throughout the building & home. Oversized windows flood the open living space with natural light & courtyard/water views. The kitchen features Silestone quartz counter tops, Bosch appliances & an island perfect for entertaining. The Primary bedroom has charming views of courtyard and water, and the versatile den is perfect for a home office/second bedroom. Enjoy ample closet space and storage solutions throughout including a deeded storage unit conveniently located on the same floor. The Mark is a full service building with amenities including: 24/7 concierge, fitness center with flex studio, harbor view resident terrace with grills and fire pits, golf simulator, conference rooms, entertainment suite, and pet spa. Modern community in a prime Eastie location - easy access to dining, transit and waterfront. A turnkey opportunity for seamless city living.

More Info

Basic Information

  • Bedrooms1
  • Mls StatusActive
  • Bathroom1
  • Parcel Number W:01 P:05403 S:144,1328111
  • Unit Number506

Tax Information

  • Tax Assessed Value $784,200
  • Tax Year 2025
  • Taxes$9,081

Parking

  • Parking Spaces1
  • Covered Spaces 1
  • Garage YN Yes
  • Parking Features Attached, Under, Deeded, Off Street

Rooms

  • Bathrooms Total Decimal 1
  • Full Bath1

Basic Information

  • List Price$850,000
  • MLS Number73490155
  • Modification Date04/26/2026
  • Property SubTypeCondominium

Location

  • NeighborhoodEast Boston
  • SubdivisionEast Boston
  • Address99 Sumner Street
  • Building Number99
  • CountySuffolk
  • StateMA
  • StreetSumner Street
  • TownBoston
  • Zip02128

Building

  • Attached Garage YN Yes
  • BasementN
  • Building Area Units Square Feet
  • Entry Level 5
  • Garage Spaces1
  • Rooms5
  • Stories1
  • Year Built2020
  • Year Built Details Actual
  • Year Built Source Public Records

Utilities

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

Property Information

  • Square Feet783
  • Building Area Source Public Records
  • Living Area 783
  • Lot Size Units Acres
  • Property Attached YN Yes
  • Structure Type Mid-Rise

Amenities

  • Amenities
    • Bike Path
    • Highway Access
    • House of Worship
    • Laundromat
    • Medical Facility
    • Park
    • Private School
    • Public School
    • Public Transportation
    • Shopping
    • T-Station
    • Walk/Jog Trails
  • Association Amenities Elevator(s), Fitness Center, Clubroom, Storage
  • Other AmenitiesGolf, Waterfront, Water View
  • Security Features Concierge

Water Body

  • WaterfrontYes
  • Waterfront Features Waterfront, Harbor

Other

  • Association Fee $964
  • Association Fee Frequency Monthly
  • Association Fee Includes
    • Insurance
    • Maintenance Grounds
    • Maintenance Structure
    • Reserve Funds
    • Sewer
    • Snow Removal
    • Water
  • Date Listed03/23/2026
  • Farm Land Area Units Square Feet
  • View Count4

Map Location

Driving Directions

Listed by Alexandria Lyons of JD Advisors,Inc

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.