By Kathy Tomasulo
From ecohome magazine, July/August 2011
Caterpillar House, Custom 2,000-4,000 square feet, Carmel, Calif.
On a bluff in the Santa Lucia Preserve in Carmel, Calif., the Caterpillar House sits as a striking example of how sustainable goals, client needs, traditional values, and modern design can come together to form a house as beautiful and functional as the breathtaking land surrounding it.
Among the homeowner’s wishes were features in tune with her eco-minded principles and a design that reflected the ideals of the Cliff May ranch house she grew up in. To embody the spirit of that style, the team incorporated some of its core elements, including low roof lines, an informal entry, and a casual floor plan that revolves around the kitchen, and modernized it into an elegant interpretation that is open and airy, with a more graceful shape and expanses of glass that take in the surrounding property.
Accommodating that much glass while still achieving performance levels 49% above Title 24-code guidelines required creativity and careful planning. The elongated, slightly curved east-west layout maximizes passive solar gain, while concrete floors and carefully placed rammed-earth walls act as thermal mass; trellises and overhangs shade the south-and west-facing low-E windows. These features, combined with ceiling fans and optimal cross-ventilation, eliminated the need for air-conditioning and allowed for only zoned radiant floor heating. The south-facing roof over the living room accommodates an 8k-W solar array while opening up the space to northern views.
The client’s willingness to incorporate more elaborate green features—along with her desire for a lush landscape and garden—allowed for a 27,300-gallon rainwater harvesting system to support 100% of site irrigation. All plantings are native and drought-tolerant and 98% of the site is permeable.
“I really love how much of the client is in this house,” says architect Jonathan Feldman, AIA. “I love how simple and pure the forms are and at the same time how well the building functions.”