Cambridge, MA

Watermark Kendall East at 250 Kendall Street


Watermark Kendall East brings an additional 144 apartments to a new residential complex, which also includes a 321-unit tower and parking structure constructed in an earlier phase. The two buildings share a retail podium and many amenities, while remaining aesthetically independent. The east building’s elevation, with its punched curtain wall and metal panels, complements the west tower’s combination of curtain walls and punched windows. SGH consulted on the building enclosure.

SGH assisted with the design of the building enclosure, including the punched glass and aluminum curtain wall, windows and terrace doors, wall and plaza waterproofing, and roofing. Highlights of our work include the following:

  • Reviewed the building enclosure design and recommended modifications to improve the performance
  • Consulted on the design for 30 ft tall flanged punched windows fabricated from curtail wall components
  • Developed details to integrate the various systems, including the transition between the new plaza waterproofing to the existing system at Watermark Kendall West
  • Designed complex expansion joint details around separations between the many structures
  • Reviewed related contractor submittals to compare with the design intent
  • Performed water testing at select curtain wall areas and terrace doors during construction to compare with the project’s performance requirements

Project Summary



Completion Date


New Construction
Building Enclosures
Commercial | Residential | Mixed-Use
CBT Architects
Specialized Capabilities
Facades & Glazing | Roofing & Waterproofing

Key team members

Joshua Kivela
Joshua Kivela
Michael Louis
Michael Louis
Senior Principal