When she isn’t at home in Harlem, the interior designer Sheila Bridges can usually be found at a custom 1,600-square-foot barn-shaped house she designed and built for herself in Hudson, N.Y.

Inside, the dining room showcases the furniture, art and accessories she loves. Because she usually eats in the kitchen and entertains guests outdoors, it serves as more of a casual library and gallery than a place for meals.