On a crisp fall day, when the afternoon light is just starting to fade into evening, Gwyn and Kevin Fletcher’s house is a bustling hive of activity. Children dart through, grabbing snacks from the kitchen counter before heading back outside. Gwyn diligently works on a crossword puzzle, brow furrowed, as Kevin readies himself for a soccer game. It’s a relaxed, vibrant family setting, and one for which the house was perfectly tailored. When Gwyn, a production manager for movies and co...