Host Kevin O'Connor arrives in Weston to find homeowners Amy & Pete Favat in the backyard, cutting back the spring overgrowth so the workers can get through. General contractor Tom Silva begins building the new house by setting the pre-cast foundatio... (more)n walls that are poured in a factory then trucked to the site and lifted in by crane. In New Hampshire at Bensonwood, builder Tedd Benson shows Kevin the work in the timberframe office, and demonstrates how his crew is using sophisticated software and computer-controlled cutting machines to begin fabricating over 300 timbers for the project. Back in Weston, the next step is to pour the slab for the basement and garage floor, so plumbing and heating expert Richard Trethewey installs a new insulated in-slab radiant heating system. Landscape architect Wes Wirth presents a plan for the new yard that helps deal with the wetland setbacks, excessive road noise, challenging topography, and existing garden beds.