We sited the porch off the back corner of the dining room, a 1930s addition that had been tacked on to our Victorian-era house. The room had leaky windows that we wanted to replace anyway. And the sun really beat in there, since it's on the south side of the house. The previous owner had told us the home once had a wraparound porch, and we wanted to make something that at least felt like a full side porch. To do that, we also decided to add a 20-by-12-foot pergola that would extend from the porch to the front of the house, along the living room side. We figured deciduous vines would eventually climb up and filter some sun in summer, while letting in warmth and light in winter.