The all-glass music pavilion captures the panorama of nearby hills and lakes. The walls are made of 1¼" insulated acoustic glass panels faceted to diffract sound and produce a full, clear tone. The pavilion gives the music arts a wholly new venue not only on the Hotchkiss School campus but also for the entire region. It hosts an annual series of performances and summer open air concerts by guest artists which are free to the public.

Individual and ensemble practice rooms, a music technology studio, classrooms, a radio station, and faculty offices complete the Center's program.

Hotchkiss Music Department Chair Fabio Witkowski said of the project:

"The Katherine M. Elfers Hall is one of the most unique halls I have seen in my entire life for two simple and related reasons: its ability to combine all the best features one would wish in a concert hall, and the way it successfully ties all these elements to its unique and privileged location."

The building employs sustainable materials and resources and has received a LEED Certified Rating from the U. S. Green Building Council.

Centerbrook also designed the LEED Certified and six-time award-winning Biomass Heating Facility at Hotchkiss.