The firm's main challenge was to create a dialogue between the old house and the new tower. To do this, a plinth was created on the front of the house by extending the base across the site to the right, and then setting the tower addition on top of the base. The base is the common element that ties the existing house to the tower addition. The recessed yellow niches in front help break up the neutral gray base and give the home a stronger sense of rhythm. "There is an in-out-in-out pattern as the eye moves from left to right, from old to new," says Loosle-Ortega.