Heather was game to be his guinea pig: As a child, she'd struggled with asthma and allergies and understood how a home could affect one's well-being; now a vegetarian and a "conscious consumer," she says she's always "looking for ways to tread more lightly on the planet." So the Ferriers hired Dallas-based architect Gary Gene Olp to design a home that would be, according to Gary, "contemporary, easy-to-build, highly energy-efficient, and lovely." The biggest challenge was to accommodate Heather's construction budget of $115 per square foot, a pea-size figure compared with other green homes.
Every design decision was made with both budget and earth-friendliness in mind. Sculptural glass blocks allow ample sunlight into Heather's living room, which reduces the need for lamps and fixtures. When she must have artificial light, Heather uses energy-saving compact fluorescent bulbs.
"In Texas, keeping the sun and heat out of the home is our big thing," Heather says. To that end, the awnings on the south-facing back of the house control the amount of sun that filters through the windows.
Outside, a 3,000-gallon tank catches rainwater, which is used to flush the toilets and water the lawn.
"The house is pretty modern, so I wanted to balance it with a more rustic kitchen," Heather says. She brought the Cost Plus World Market breakfast table from her former home.
Leaves fell on wet concrete during construction of the porch. "We tried to pick them out but decided to leave them," Heather says. "They're even inside the house—it's like going back to nature." The chaise is from Ikea.
So how did the Ferriers' collaboration go? Swimmingly, by every measure. The house came in just under budget, and Heather loves the place. It's won a bevy of honors, including one from the American Lung Association's Health House program and the platinum LEED certification, the highest rating for building-sustainability. (Heather's is the first residence in Texas, and the third in the country, to receive the LEED honor.)
To support her father's vision, Heather opens her home frequently for tours, and more than 4,700 people have traipsed through to date. "The first weekend we had the finished house open for tours, a woman marched up to me with a checkbook and said, 'I want to buy it now,'" Heather says. Wisely, she demurred. Good citizen of the planet and daughter that she is, Heather handed over one of her father's business cards instead.