THIS 3,000-SQUARE-FOOT, ranch-style welcome center is a prototype whose earth-savvy building practices earned it a platinum LEED ranking from the U.S. Green Building Council. Sustainable features include salvaged construction-site stone for the fireplace and chimney, and ceiling trusses that were reconstructed from a dismantled pier, along with wheat-board cabinets, cork kitchen flooring, and sunflower husk countertops. More than 90 percent of construction debris was separated at the site and recycled.

Category: Green design/building; Entrant/Interior designer: Design Line Interiors, San Diego; Architect: Nick Fullerton Architects, Kalispell, Mont.; Builder/ Developer: Black Mountain Ranch, San Diego; Landscape architect: Vita Planning and Landscape Architecture, San Rafael, Calif.

Learn more about markets featured in this article: San Diego, CA.