Offering both beauty and brains, these designs come from the Energy Saver Plus Collection, which features plans that boast energy savings of 40% to 50% compared to typical new homes. Case studies by the DOE showed the first two plans here achieved HERS index scores below zero. All of the plans incorporate smart details, such as interior ducts under the vented attic, standard 2x6 framing, California corners, raised heel trusses, and roof real estate for solar PV panels. Together, these account for impressive energy efficiency and savings. The plans offer three different elevations—French country, Mediterranean, or Southern—for each layout, giving variety to a development or flexibility for building in an established neighborhood.

Southern Hospitality

Built by Gainesville, Fla.-based Tommy Williams Homes, this house scored a -2 HERS index with solar PV. Its charming Southern style is packed with signature amenities, such as 10-foot ceilings, lighted niches, covered porches, a luxurious master suite, and thoughtful design that makes this split-bedroom, open floor plan live large. The three bedrooms and two-and-a-half baths are privately buffered from the public areas. See more images, information, and the floor plan.

Beautiful Touches

A version of this plan was also built by Tommy Williams Homes and determined by the DOE to have a HERS index of -1 with solar PV. Amenities abound inside, including decorative ceiling treatments, lighted niches, and a luxurious master suite with his-and-hers walk-in closets. Two additional bedrooms, one of which opens to the rear lanai, share a bath with dual vanities. Windows wrap along the back of the home, bathing the interior in sunlight and fresh air. See more images, information, and the floor plan.

Old World Charm, Updated Efficiency

The stone-encrusted facade on this gorgeous plan offers an unmistakably European feel. The great room takes center stage inside, with a tray ceiling and access to the wide rear lanai. The master suite occupies the whole left wing with a large bedroom, walk-in closets, and a spa-like bath with a bumped-out tub. Two additional bedrooms share a full bath in a private wing. See more images, information, and the floor plan.

Courtly Manners

Charming shutters and a wall of rock bring French Country flavor to this remarkable plan. The whole home revolves around an expansive central courtyard, accessed by the fantastic first-floor master suite, the open kitchen area, and a detached guest suite. Two bedrooms and a study upstairs enjoy large, covered balconies. See more images, information, and the floor plan.