Brittain Sullivan is a New York City based interior designer and antiques dealer specializing in Early American and European antiques and textiles. When she isn’t sourcing antique pieces, she leans into the work of independent makers — collaborating with hand-built furniture, object, and textile designers from around the world. Drawing on a professional background in the fashion industry and a childhood spent among a family of multi-generational antiques collectors, Brittain brings a distinctive eye and a sense of history and life to every space she designs.

Brittain takes on select projects spanning NYC, the Hudson Valley, Cape Cod, and California, ranging from single room refreshes to full home transformations. Her design philosophy centers on the thoughtful pairing of old and new, with antiques and heirloom pieces lending each interior a wonderful sense of character, soul, and warmth. The result is a layered, lived-in space that feels collected over time rather than designed all at once — and makes you want to linger a little longer.