Net-Zero Homes Help Solve an Affordable Housing Crisis at a Native American Reservation
The Pine Ridge Reservation in Porcupine, South Dakota, is home to 35,000 members of the Oglala Lakota Nation and comprises some of the poorest counties in the country. Besides widespread unemployment, the area struggles with overcrowded housing and, by some estimates, may require 4,000 new houses. In 2013 a local nonprofit, the Thunder Valley Community Development Corp., commissioned a master plan for an eco-friendly community that would generate economic, cultural, and social opportunities for Pine Ridge. The plan calls for a 34-acre mixed-use development, estimated to cost $60 million, with roughly 100 units of affordable housing. The first phase includes 21 units that the community is helping to build. "Whenever you’re building houses, you have the opportunity to use that product as a workforce-development training program," says designer Rob Pyatt of Boulder, Colorado.
Scheduled for completion in December, a neighborhood of seven houses designed by Pyatt Studio represents the beginning of the Thunder Valley Regenerative Community Development. The model for two more neighborhoods, it incorporates a matrix of practical and cultural considerations. The three-bedroom homes can be expanded to include a wheelchair-accessible bedroom and bath. The buildings face east, the orientation of traditional Lakota dwellings, and they’re arranged around a central garden, referencing the sacred geometry of the tipi circle. Their pitched roofs shed snow and hold solar panels, and they’re clad in painted corrugated steel for durability.
"This model for revitalization could be the model for anywhere in the world." Lenny Lone Hill, tribal elder
The homes are also designed to be net-zero, which, in a region that has average lows of 9 degrees in December and highs of 89 in July, is not just a worthy environmental goal, but critical to affordability. "The idea was to exchange people’s heating and cooling bills with mortgage payments and build equity," says Pyatt. The design team followed Passive House guidelines, creating heavily insulated, tightly sealed homes with high-efficiency HVAC equipment. The homes are assembled from structural insulated panels for faster, easier construction. (Very-low-income buyers are lessening the cost through sweat equity by helping to build their own homes. Students in a local educational program are also receiving hands-on training.)
If all goes according to plan, in another eight years the neighborhoods will be part of a community that includes retail buildings, a greenhouse, a wastewater treatment plant, and more. Lenny Lone Hill, a tribal elder and construction trainer, says, "We’re past the talking stage—we’re showing that we can do it."
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Illustrations by Yann Kebbi