The sustainable home improvement store TreeHouse is the first-of-its-kind store to go national, according to a release from the company. TreeHouse co-founder and president Jason Ballard plans to open midsized stores in centers with co-tenants like those he has in his flagship Austin store: HEB Central Market, Whole Earth Provision Co and a movie theater. The first stores will probably start off in like-minded sustainability communities like Boulder, CO; Portland, OR; San Francisco; and Seattle. Store offerings: non-toxic and energy-efficient building products, flooring made from recycled material, natural cleaners, LED lighting, solvent-free finishes, water-conserving cisterns and solar-energy systems. He also says the stores will differ from the big-box home improvement stores by offering three curated offers in each category, rather than 10. The products will pass a screening process based on health impact, performance, sustainability and corporate responsibility. No store sites have been announced.