Norton Commons will be showing off some of its newest geothermal homes in a home show at the East End new urbanist community. The "Welcome Home Tour & Design Show" is slated to kick off Saturday and continue through June 2, featuring 12 new homes that use sustainable homebuilding practices. The homes typically range in size from 2,500 to 3,000 square feet and start in the $550,000 range. The most expensive homes on the tour exceed $800,000, said Marilyn Osborn Patterson, marketing director...