As you cross the threshold into the So Residence, a 3,000sf townhome renovation located on the banks of the Potomac River in Alexandria, VA, you enter into a four story custom millwork rectangular cuboid that organizes the program and encloses the vertical circulation. One moves into and out of this volume that connects the open spaces to be inhabited throughout the structure. The owner, a physics professor, is an avid art collector and philanthropist. He shares the newly renovated home with his partner providing a sanctuary from the sometimes hectic pace of urban living and a showcase for their art collection.