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Sustainable Treetop Home

High design meets LEED-certified sustainability in the Marin County hills.

Jess Chamberlain
1 /8 Photo by Thomas J. Story

Eco-friendly design meets high style

Scott and Tracy Lee’s house in Mill Valley, California, was built on a small hillside lot, which made for a challenging vertical floor plan. To compensate for lack of yard space, the home has as many outdoor rooms as it does indoor. On top of being breathtakingly beautiful, the 2,100-square-foot house, which Scott designed, was recently named the first LEED for Homes Platinum home in Marin County.

Take the treetop home video tour courtesy of Eldorado Stone. Designer and architect Scott Lee shares how high design meets LEED-certified sustainability.

2 /8 Photo by Thomas J. Story

The great room

The top floor is essentially one large space that includes a living room, a dining room, a kitchen, and an outdoor (but roofed-in) family room—complete with barbecue and wine fridge.

3 /8 Photo by Thomas J. Story

Dining area

“It helps that the kitchen is elevated by one step, so if you’re the unlucky one doing the after-dinner dishes, you’re still part of the action,” says Scott. “And there’s a lot of privacy up there among the treetops.”

Sustainable resources: Reclaimed Douglas fir roof and beams, radiant-heat flooring, cabinets made from FSC-certified walnut, a dining table made from a salvaged tree, double-paned low-e glass windows and doors, antique pendant lights.

4 /8 Photo by Thomas J. Story

Timeless decor

An eco-friendly design concept should withstand the trends of time, points out the project’s interior designer, Erin Martin, so that rooms don’t have to be redone as styles change and children grow.

In the girl’s room, the palette is neutral, though punches of color appear in transient accessories like the rug and a stuffed animal. Throughout the house, Erin used antiques and reclaimed materials wherever possible.

Sustainable resources: Organic cotton bedding, zero-VOC wall paint, wool rug.

5 /8 Photo by Thomas J. Story

The great outdoors

Almost every room has a balcony or deck, accentuating the treehouse feel and essentially doubling the living space. The master suite includes an open-air bathtub, accessible from the bedroom terrace and the bathroom shower.

6 /8 Photo by Thomas J. Story

Faking a lawn

Off the second floor is a “lawn” where Tracy does yoga and the girls can play.

Sustainable resources: Western red cedar siding, soy-based synthetic grass, 50 photovoltaic panels, 2 thermal solar panels.

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Floor plan: Lower levels

The floor plans for the garage and first floor

Team Hillside House: Scott Lee, architect; McDonald Construction & Development; Erin Martin Design.

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Floor plan: Upper levels

The floor plans for the second and third floors

What is LEED-H anyway?

Launched in 2008, Leadership in Energy and Environmental Design for Homes is a rating system for green building administered by the U.S. Green Building Council. From the use of low-flow faucets to the diversion of construction waste, each project is rated in eight categories, earning points toward a LEED-H level of Certified, Silver, Gold, or Platinum.