Structural design of a new ten-story concrete tower with basement. Approximately 51,000 square feet with exposed courtyard on the first floor and terrace on the ninth floor. The structure is located on a tight urban site which necessitated the use of an innovative  foundation system consisting of a combined mat and drilled piers. The primary vertical load resisting elements consist of  post-tensioned two way concrete floor slabs and concrete fill metal decks at the mechanical penthouse supported by concrete columns and walls. The primary lateral load resisting elements are concrete shear walls up to the roof level and steel braced frames at the mechanical penthouse above the roof.