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The U.S. Census Bureau's latest housing survey, published in 2005, shows the median size of a new home is 2,259 square feet and sits on more than a third of an acre.
While such homes are more than twice the size of those built in 1950 (see main story), studies suggest consumers are starting to demand smaller houses on smaller lots. Some building industry experts say consumers' changing preference for smaller, more energy-efficient homes is evidence of an imminent "tipping point" toward so-called green home construction.
A McGraw Hill Construction survey of 353 builders last year found 82 percent of them were installing what the industry calls "low-emissive windows" -- windows with several energy-saving panes -- in projects, while almost 90 percent of respondents were working to preserve open space.
About 39 percent of those surveyed reported building projects on smaller lots compared to five years earlier. Just 7 percent of builders said they were building on larger lots, according to the survey.
Translation: This will be the year when most builders report moderate or heavy involvement in green home construction, the survey concludes.
Two years ago, 70 percent of builders reported little involvement in green building; that is, 15 percent or less of their homes included energy- and water-efficient features. This year, the study predicts, just 37 percent of builders will report low involvement, while an equal amount will report high involvement -- that 60 percent or more of the homes they build will be green.
"As the industry crosses from being less involved to more involved, it means the rest of the industry will be forced to follow, and the green homes of today will become the standard homes of tomorrow," writes the study's author, Harvey Bernstein, McGraw Hill's vice president for industry analytics.
Bernstein predicts that by 2010 up to 10 percent of new residential and commercial construction starts will be green. The residential market's share, alone, would translate to roughly $38 billion, not counting remodeling.
A separate study published last year by the American Institute of Architects suggests consumer demand for greener homes is beginning to mesh with broader sustainability efforts by architects and urban planners.
The design trend survey, published last December, found "traditional" neighborhood designs that feature homes built closer to the street, with front porches and on smaller lots are increasing in popularity.
Sixty-four percent of survey respondents wanted access to public transit, up 21 percent from the year-earlier survey. And 45 percent said they wanted quick access to shops and other commercial services, up 15 percent.
"Encouraging clustered retail development with a multitude of services around public transportation and dense residential units has been part of an overall strategy by architects and public officials to foster more vital and healthy communities," said AIA chief economist Kermit Baker, the study's author. "Consumer demand has caught up to this approach."
The Sustainable Design special report looks at environmental, economic and social forces driving the burgeoning green building movement. From Wall Street to Main Street, sustainable design is reshaping how we make homes, high-rises and buildings in between.
Part one examines new LEED practices in commercial design.
Click here
SEATTLE -- Tree-toppling gales, rushing flood waters and blinding blizzards tested the limits of this famously soggy city this winter, but at least one patch of Gore-Tex Nation took the storms in stride.
High Point -- an experimental "green" neighborhood in West Seattle -- sopped up record precipitation through permeable streets and sidewalks and roadside ditches planted with hearty grasses, trees and shrubs. Runoff drained to an artificial pond that filtered pollution before letting water trickle to a salmon-bearing stream.
Tom Phillips, a senior project manager with Seattle Housing Authority, is wild about High Point's back-to-nature drainage system. "See that? That's about as high as the water will get," he exclaims. The football field-sized pond was about 10 feet deep with as much room to spare.
And while the sublime stormwater-treatment system won't thrill everybody, it's what makes High Point quintessentially Seattle and perhaps points toward the future of all American neighborhoods.
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| More than 700 one-story ramblers were built in Seattle's High Point neighborhood for laborers at booming shipyards and aircraft plants in 1942. The city's housing authority is redeveloping the area as an experimental "green" neighborhood. Photo by Michael Burnham. |
The U.S. Green Building Council, the increasingly influential body that fomented a revolution in the design of "green" office towers, plans to tackle suburbia next by integrating environmental sustainability principles into houses, streets and sewers. Joining them are "new urbanists" who aim to transform abandoned factories and moribund strip malls into bustling neighborhoods where people put more mileage on sneakers than SUVs.
But the utopians face a tough task. While surveys show a growing number of homebuyers would pay a premium for a greener dwelling, most people put a house's looks, location and price ahead of saving the planet when it comes time to sign the mortgage papers. So as developers continue to plant rows of McMansions on farmland, sustainability advocates are trying to change decades-old attitudes about energy-hogging homes and commutes.
"In terms of the whole package -- green design, stormwater management, mixed-income housing, new urbanism -- High Point is the real test case," Phillips says. "Nobody's looking at neighborhoods in a holistic way yet. It's up to the developer how far they go."
From the top of West Seattle -- the city's highest point -- the craggy Olympic Range fans out to the west, Mount Rainier to the south, Elliot Bay to the north and to downtown to the northeast. The million-dollar view is shared by working-class immigrants, wealthy executives and earners in between.
Cresting the hill is 35th Avenue, which for years separated West Seattle haves from High Point have-nots. The dividing line dates to 1942, when the Department of Defense built more than 700 one-story ramblers to house laborers for booming shipyards and aircraft plants. High Point's homes resembled barracks -- homely structures devoid of porches and charm.
The neighborhood declined after the Housing Authority designated High Point as low-income housing in 1953.
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| Stormwater drains to High Point's artificial pond, which filters pollution before the water trickles to a salmon-bearing stream. Photo by Michael Burnham |
Crime grew more common by the 1990s, and High Point residents were isolated among a looping network of newer, suburban-style streets. Mold grew on the wood-paneled homes and crumbling sewer pipes leaked. And when it rained, runoff swept oil, pesticides and grime into salmon-bearing, Longfellow Creek.
A few years ago, the city began razing the old High Point and starting over. The 34-acre master plan -- drawn up by the Seattle Housing Authority and hometown architecture firm Mithun -- features a commercial nook for a coffee shop, dry cleaners and restaurants, as well as a doctor's office, library and central park.
The plan calls for 1,600 compact houses, townhouses and apartments. More than 500 of the units are market-rate homes; the rest are for residents who earn between 10 and 60 percent of the county's median income, $74,300.
High Point -- now half-finished -- seems old-fashioned. Its planners want to take the neighborhood back to an era when people knew their neighbors, and worked and shopped a walk or bus ride from their homes.
High Point's planners are trying to change a U.S. development pattern more than 60 years in the making.
Today's sprawling suburbs of large houses and large lots were made possible by federal highway and housing laws from the days of FDR and Eisenhower. Those laws enabled GIs returning from World War II to sign low-interest, long-term mortgages on houses in leafy suburbs and built interstate highways to take them to jobs in the city.
The epitome of the suburban boom was Levittown, Pa., which in the 1950s became the nation's largest planned community constructed by a single builder. The town's 17,000 houses spread over 5,500 acres of lower Bucks County. The new American dream -- a "Levittowner" ranch home with carport and lawn -- could be had for $11,000.
It was a long way from the old walk-up in the city.
"With low-interest loans, you could buy more house than you could before," notes John Norquist, a former Milwaukee mayor who has taught urban policy at the University of Chicago and other schools. "And because of the mass-production of mortgages, builders could mass-produce houses."
Some of the forces that enabled the new American dream, however, also eroded traditional city life, he adds.
While new highways made it possible for people to live far from work, zoning laws first popularized in the 1920s made certain few would walk to their jobs. Zoning segregated residential from commercial and office development throughout most of the country by the 1950s, Norquist explains.
While Miami, Denver and other cities are reforming zoning laws to promote mixed-use development, most newer municipalities still have separate-use zoning embedded in their DNA, he says.
"The Main Street you see in old pictures of cities -- you can't build that today because it's illegal," Norquist says. "You need special-use permits in most cities."
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