Bigger than median. At 3,000 square feet, the Randolph Street penthouse slips past the 2,169-square-foot median size of new homes, according to the 2010 census. The family room and lounge areas on the upper level show off the Lightology fixtures. Honorable mention: the multidimensionality of space and textures, the various perspectives from the Atrium, and that billiard table (pictured upper right). A striking vignette.