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Living in sync: learn from two pros who packed all the best water-wise, eco-smart ideas into one home--their own.

"DON'T BUY ITI" was architect Ken Radtkey's reaction when his then-girlfriend, Susan Van Atta, was considering the 1-acre parcel in Montecito, California. "The place was a mess," admits Van Atta, recalling the overgrown castor plants and tiny concrete house. "But as a landscape architect, I could visualize what it could become." After living there for a few years, Van Atta married Radtkey, and the couple decided to turn the subpar property into their dream home--one that's sustainable from the plantings to the rooftops.

The decision to maximize energy efficiency came easily, the two say. "The home was a laboratory for all the things we hadn't gotten the opportunity to do with clients," says Van Atta. Setting a portion of

THE BIG IDEAS

Lessons from the ultimate eco house

PLANT WITH A PURPOSE

Throughout the yard, Van Atta chose low-water natives, including Fragaria vesca (woodland strawberries) and Santa Barbara honeysuckle, which benefit birds and pollinating insects The lawn is watered by below-ground irrigation to minimize evaporation. the 2,500-square-foot house in a slope provides natural insulation and blends the structure with the surrounding hills. Solar panels supply all the electricity; fire-resistant green roofs are part insulation, part water collectors.

In the yard, Van Atta created flat tiers along the slope to make it more usable, then landscaped with natives and edibles. "Plants should earn their irrigation," she says. The tier nearest the house holds ornamental edible crops, while other levels include vegetable beds, a bocce ball court, a citrus orchard, and unthirsty native Agrostis pal/ens grass, where the family often plays lawn games (Van Atta's son, Ian, is 23, and the couple's son, Kellen, is 13).

The indoor-outdoor collaboration was even more satisfying than Van Atta and Radtkey had anticipated. "It's not just a box sitting on the land," says Radt-key. "The house works so well with the landscape, we almost think of it as all garden."

Architecture: Ken Radtkey; bbird.com. Landscape architecture: Susan Van Atta; va-la.com.

BUILD IN FLEXIBILITY

Above: Two sliding glass pocket doors--one between the living room and the veranda, the other between the veranda and the garden--allow the family to vary how much they open the house to the outdoors. In winter, when both doors stay closed, the space between becomes a solar collector, says Radtkey. "It gets warm enough to heat the whole house." The flooring throughout the downstairs, continuing onto the veranda, is saw-cut salvaged Santa Barbara sandstone. "That's the stone you expose when you grade here, so it looks completely at home," Van Atta says.

APPLY TIME-PROVEN TRICKS

Top right: Most of the home's sustainability comes from low-tech ideas practiced for centuries. For example, a stairway acts as a flue for warm air to rise up and out, and cool air to circulate (an effect called stack ventilation). As a modern touch, air plants are mounted to the concrete walls.

WORK YOUR ROOF

Right: Soft curves, such as this roofline, are a signature of Radtkey's architectural style. But the roof's sweep also helps harvest rainfall. Water spills from the main roof onto the garage roof meadow, and drips via gutters to a series of underground cisterns that can store up to 10,000 gallons of water.

GO WITH THE (LOCAL) GRAIN

Above: For most of the woodwork in the home, including the dining room table, the couple used eucalyptus lumber from trees harvested on the property. "It's one of my favorite things about the house," Van Atta says. "The wood brings so much meaning." Strand bamboo cabinets blend in with the eucalyptus and other natural materials in the home.

RELOCATE THE FIREPLACE

Below left: Radtkey wanted to extend the time the family could spend on the master bedroom terrace--Van Atta uses it for yoga and the family likes to dine out there--so he installed a small gas fireplace. He prefers it to a wood-burning outdoor firepit because the energy use is limited. "It's better to have gas, turn it on, enjoy it for 20 minutes, then turn it off," Radtkey says.

More than 50 of the West's most innovative gardens, including this one, are featured in the new Sunset Western Garden Book of Landscaping (Oxmoor House; $30).

Blipp to buy this book.

DIGITAL EXTRA Top 50 water-wise plants: sunset.com/unthirsty.

GIVE FUNCTION GOOD FORM A

Above: The plot just outside the kitchen door works hard but looks good. Van Atta designed the triple-bin composter to mimic fencing and planted grapevines to train up the chicken corral.

USE GREEN INSULATION

Right: Sedums in contrasting colors turn the roof into an elevated garden with an ocean view. They also regulate the home's temperature. "If it weren't planted, this roof would be 200 hotter in the summer," Van Atta says.
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Title Annotation:Home & Garden
Author:Coboon, Sharon
Publication:Sunset
Geographic Code:1USA
Date:Mar 1, 2014
Words:787
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