The program includes a flexible space for floor and podium display of large sculptures, shelves for maquette models, an outdoor sculpture garden, and a gallerist office. A movable worktable is used for crafting clay models. A hydraulic loading door and jib crane aid in the installation and removal of sculptures. The interior spaces are minimal and open. Structural steel members are exposed above the main studio. A monumental steel shelving display is integrated into the space and window composition.

The project holistically incorporates the framework for design excellence. Annex is designed to inspire the spatial experience in concert with the art experience. The design and construction teams collaborated throughout the project to enhance transparency and teamwork. Water capture and erosion control are mitigated through the permeable gravel plinth. Corrugated Corten siding and roofing panels use recycled steel content. No fossil fuels are used on site. Heating and cooling is provided by an electric heat pump. Ventilation is provided by large doors and operable windows. Natural plaster and Swedish pine tar finishes contribute to healthy indoor air quality. Waste management throughout the construction process was monitored by separating recycled content from landfill content. The project is structurally designed and built for resiliency in extreme weather events and power outages. The project includes a ground-mounted PV array.