seeking a desert haven, the engel's relocated to scottsdale several years ago from the east coast. after purchasing a residence built in the late 80's, an extensive renovation and addition was in order. As the house doubles as the engel's office and design studio, the addition includes a gallery and art studio that wraps around a large existing mesquite tree. the tree provides shading for the large expanses of glazing incorporated into the design. the existing residence was re-designed to create a new indoor | outdoor relationship and to incorporate a great collection of "pop art". the kitchen is clad with translucent millwork and stainless steel while the adjacent dining room incorporates a large glazed garage door that opens to an outdoor terrace. the master closet is "to die for" and would be the envy of anyone who loves shoes, has shoes, or is thinking about purchasing shoes.