OPPOSITE PAGE, TOP AND BOTTOM ADUs, like this one designed by Prismática, are secondary housing units built on a single- family residential lot.
STICKS AND STONES, CONT.
“My parents practiced sustainability in the 1970s and ’80s, before it became a popular thing,” Drew says. Growing up on the property that is now Ilan-Lael, a 10-acre Hubbell family compound just outside of Santa Ysabel, Drew and his brothers helped erect structures using adobe bricks and planks of cedar milled from local trees. The family grew their own produce and composted the scraps. So when Drew and his father set out to start an architecture firm in 1995, it was only natural to focus their work on green techniques. But they ran into bureaucratic barriers: The city
As it stands, San Diego does have its share of architects and firms helping move the city toward a greener future. That includes Elizabeth J. Carmichael, owner and principal architect of ECOhouse and president of the San Diego Green Building Council. Though 95 percent of her clients are developers, she has seen the shift in priorities from businesses and homeowners alike. “We get clients that really want to do as much sustainability as possible,” Carmichael says. “They come in and tell me, ‘We want to be green. We want to make it sustainable.’ Whereas before … we were kind of pushing our philosophy on the client. Now it’s almost the opposite.” ECOhouse has a current project in Coronado that is emblematic of their holistic approach to integrating sustainability and functional design. Nicknamed “Irons and Fins,” the house encompasses 11,000 square feet. Rather than building out, however, the blueprint saves space by moving up (and down) with a three-story floor plan, including a basement. The luxury property also boasts a coveted list of green amenities and functionality, with a roof entirely covered in solar panels, alongside solar water heating and a separate solar-powered battery should going off the grid ever be necessary. The house is outfitted with two giant tanks for rainwater harvesting, and the LED- efficient residence also benefits from a basement design with a passive cooling system, where sliders open up to bring in cool air which passes to the first floor. The top floor features a similar system for hot air to escape. South-facing with overhangs, the house is designed to capture the sun in the winter for passive heating, while the overhangs protect and cool during the heat of the summer. Two-hundred-year-old juniper trees that were harvested while preparing the property for the build were later
ABOVE Each Hubbell project carries a touch of whimsy. BELOW Ilan-Lael buildings made from sustainable foam core sandwich panels.
and county of San Diego were reluctant to issue permits for approaches they considered new and untested. Rather than fall back on less earth-friendly methods, the Hubbells went to bat for technologies like straw bale structures, putting together a source book that detailed state laws authorizing the approach and addressing common concerns. “They have [taken the use of]
natural materials, particularly straw bales, from something that’s unheard of to something that’s considered a viable option,” emphasizes Colleen FitzSimons, executive director of the San Diego chapter of the US Green Building Council. As government institutions became more attentive to issues like climate change, San Diego County instituted the Green Building Program, which incentivizes builders to conserve resources, energy, and water in their projects. In 2000, a Hubbell-designed commercial residence close to Mount Woodson became the first building permitted under the program.
49 SAN DIEGO MAGAZINE
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