A San Francisco couple with a growing family knew they couldn't stay in their current situation in Noe Valley for much longer. Their single-story property was built above a garage, and it lacked the space and cohesive layout they desired. But rather than move to a new area, the couple decided to try to make the most of what they had — even if that meant major changes to their house. Patrick Perez of Designpad Architecture devised a plan to expand the address by excavating the basement and adding a third story. "It was important to have an open floor plan, a smooth connection to the rear garden, and view of the city," he said. The lower level now has a cozy living space off the garden, while the main floor was opened up for a living room, kitchen, den, and dining room. Lastly, the new third floor has three bedrooms — giving the couple and their two children privacy — and a roof terrace with spectacular city views. And because Perez decided to keep the materials uncomplicated, choosing warm woods and durable polished concrete floors for the lower level, the home feels bright and airy. It's just the type of place for a fresh chapter to begin.