Stephenson House by Assembledge+ and Fowlkes Studio main bedroom

Before & After: An Enlivened DC Residence Now Channels California Cool21/26

The slider was swapped for windows, and a new door leads across a bridge to a deck on top of the screened-in porch. "I really love being able to look at the treetops from the bedroom," says Marilyn. "I wasn't expecting that elevation."