Like many of the couple’s products, their new 3,200-square-foot house has a midcentury foundation, but the design has been reimagined for modern life. In this case, that involved reconfiguring the layout of the 1958 house, which they bought in 2012 for $785,00, but retaining its footprint and the three brick fireplaces.

Ben Waechter, a local architect, created a family-friendly floor plan for them, with wide hallways, large windows and a central living space that combined the dining room, kitchen, home office and family room.

“They wanted a single-story house made of forms and materials that would transcend any idea of time or style,” Mr. Waechter said. “Images of Swedish courtyard farmhouses came to mind.”

The renovation, which was completed in only five months, cost about $500,000.

Although (or perhaps because) the new house has less space, Mr. Faherty said, it functions better than the large house they gave up. “We live in every square inch of this house,” he said. “There’s no wasted space at all.”

And considering that “it’s going by so fast with our kids,” he said, what’s even better is that “it’s like the family lodge here: we get to see so much more of them.”