Since 1988, Stephen Mark Johnston has designed homes, retail stores, offices, furniture and home furnishing accessories from his downtown Los Angeles studio and Joshua Tree, CA office. Offering residential design, interior design, exterior design services and CAD drawing services to other design firms, Stephen works with clients from initial concept through move-in. Projects include ground-up construction, renovations, remodels, additions, swimming pools, and custom furnishing of dozens of homes throughout Southern California.