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  • Floor Plans
  • Available Units
  • 3D Tours
  • Location
  • Gallery
  • Contact Us
  • Where we want to live… the way we want to live.

    Close. Connected. Convenient.

  • Great floorplans with high design features.

    Furnished and unfurnished apartments available.

  • Just minutes from Tufts University!

    Academic year-lease welcome.

  • Walking distance to Ball Square, great shops and restaurants.

    We’re also pet-friendly.

Sphere is a luxury apartment building located in the heart of Ball Square Somerville/Medford.

To apply for the lottery for the income-restricted affordable units upon next availability, click here for instructions.

Location, location, location. A real neighborhood with stress-free living, nearby bakeries, retro diners, pubs, neighborhood restaurants and small shops.  Sphere is a transit-oriented development for people who value walking, biking and public transportation; and we are within five minutes of the community bike path that links us to miles of off road biking and hiking.

Direct access to the Orange line, Red Line and Green Line and to employment destinations:  Government Center, Park Street/Downtown Crossing, Tufts Medical, Mass General Hospital, Harvard Square, Kendall Square, and Longwood Medical.

What’s more, the new Ball Square Green Line Station is being built right next door to Sphere!

Right in – super-cool and not yet discovered – Ball Square Somerville/Medford, near Tufts University and within minutes of:

  • Davis Square and the MBTA Red Line
  • Magoun Square
  • Union Square, direct on MBTA Bus #80
  • Powderhouse Park
  • Sullivan Station/Charlestown and the Orange Line, direct on Bus #89

Great floorplans and Amenities!
Sign up and be notified of specials and availability:

Location:

640 Boston Avenue
Ball Square
Somerville/Medford

Sphere’s Luxury Amenities designed for you and your lifestyle:

  • 5th Floor Resident Lounge – wet-bar, HDTV and much more – adjoining a roof deck with a view
  • Sphere Fitness Center
  • Secure indoor bike storage
  • Recycling program and green initiatives
  • State-of-the-art security
  • On-line service request and bill paying
  • Furnished and unfurnished apartments available
  • Academic year-lease welcome
  • Pet-friendly

9 luxurious floorplans

Unit A – 2 options
1 BR / 1 BATH, Balcony (693 - 740 sq ft) view more
Unit B
1 BR / 1 BATH (669 sq ft) view more
Unit C
1+ BR / 1 BATH (811 sq ft) view more
Unit D
2 BR / 2 BATH (1031 - 1104 sq ft) view more
Unit E – 2 options
2 BR / 2 BATH (912 - 984 sq ft) view more
Unit F – 2 options
2 BR / 2 BATH (989 - 992sq ft) view more
© 2021 Sphere Luxury Apartments | 640 Boston Ave, Medford, MA 02155