A rain chain comes down on the west side of the house, where the Linns use the space between the fence and the building as an entry court to greet visitors or just get some fresh air with their son.  Photo 11 of 13 in In Washington, D.C., a Back Alley Becomes a Sustainable Haven

In Washington, D.C., a Back Alley Becomes a Sustainable Haven

11 of 13

A rain chain comes down on the west side of the house, where the Linns use the space between the fence and the building as an entry court to greet visitors or just get some fresh air with their son.