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Majestic Valley Oak at home's main entrance

The house features several courtyards, conveying an ever-present sense of indoor-outdoor living. Concrete walls are lined with yellow jasmine, and the wall sculpture is taken from Manuel Felguérez’s fence for the National Anthropology Museum.

Boasting sweeping downtown views, the roof deck reconciles complex geometry to accommodate a staircase, elevator, and usable social space. A fireplace is surrounded by outdoor seating from Paola Lenti.

Now more than ever, having a sustainable home that conserves resources and energy usage is paramount. Sustainable design and architecture has seen tremendous growth over the last decade—as has the number of professionals who specialize in designing and building green homes. While major sustainable features pertain to the initial design, planning, and building stages, there are still plenty of changes to make in your home for a greener lifestyle. Have you covered all your bases?

A view out from the entrance lobby shows Koch leaving the house. He made the stairs' steel risers himself, with the help of his cousin, Chris Wilson.

Several courtyards help bring greenery in. On the west side of the home, plants absorb sunlight and create another passive cooling feature. Crushed limestone pebbles and an exposed stone wall complete the lush space.

Lockyer added native desert plans to a courtyard near the garage.