
Most empty nesters downsize. Not this couple: Rebuilding on the same Southern California property where they’d raised their three children, the duo upsized from around 6,000 square feet to 10,500—and did a complete about-face design-wise. Leading the clients on their journey from traditional to contemporary were L.A.–based architecture firm KAA Design and San Diego’s Pamela Smith Interiors. A full-fledged collaboration gave rise to what’s been dubbed the Tree House.

The trapezoidal site was, in a word, spectacular. Set on a promontory overlooking the Pacific Ocean about a mile away, the two acres were filled with mature oaks, Torrey pines, and magnolia trees—ergo