A full floor, 20,000 square feet of office space in a high-rise on the edge of San Francisco's financial District, was built-out to house space for a number of associated professional firms. The plan acts as a unified whole organizing the disparate business entities through the reinforcement of the building core as a dense shaped object. This object is identified and keyed by its elliptical shape, color, and change in material from the standard light colored carpet and white painted walls of the offices to a denser darker tone and set of materials.