Renovations of century-old buildings of architectural merit often attempt to reconstitute particular moments of history. For this contemporary art space, however, LTL embraced the trajectory of the existing construction’s transformation, rather than returning it to a moment frozen in time. Located in the heart of downtown Austin, Arthouse is a renovation of a 1920s theater that was later modified as a department store in the 1950s. During the midcentury conversion, the building’s open structure, consisting of a concrete frame with steel trusses, was altered to include a single-story, steel-supported concrete deck. This second-floor addition cut in half the theater’s large proscenium space. Adding 14,000 square feet of new program to the existing art space, LTL intensified this peculiar accumulation of history by conceiving of the design as a series of further tactical additions and adjustments. These supplements revive and augment extant features—such as the trusses, concrete frame, and ornamental interior frescos from the 1920s, as well as the awning, storefront, and upper-level display window from the 1950s.