exō is a premium riverfront residential building complex designed by New York-based firm, de.Sign Studio LLC.  The name derives itself from the form of the building envelop and is expressed quite precisely and poetically by the Greek word exō, meaning a combining form. To maximize on spectacular views offered by the location of the site along Tapi River, the buildings are enclosed in full-height floor to ceiling glass. A solar envelop comprised of an exoskeletal framework wraps the buildings for climate control and weather protection. The enfolding hollow trapezoidal concrete frames delineate the building façades, giving a unique architectural character to this contemporary residential condominium complex in one of the most sought- after riverfront localities of Surat, India.