Bringing Your Dream Home to Life

Specializing in residential and commercial spaces, we use natural textures and soothing tones to craft serene designs inspired by the beauty of eastern Long Island. Collaborating closely with clients, we bring their vision to life, transforming spaces into refined coastal retreats.

Dune + Sage creates elegant coastal interiors that blend simplicity with sophistication

Our Mission

Our mission is to design timeless, elegant spaces that inspire and enhance the way people live and work. Based in the Hamptons, we specialize in residential and commercial interiors, blending coastal charm with modern sophistication to create environments that are both beautiful and functional.

Meet Kathleen

Kathleen, owner and lead designer of Dune + Sage, is inspired by the coastal beauty of the Hamptons, which shapes her timeless, functional designs. From beach cottages to modern estates, her signature style blends natural textures, soft palettes, and modern simplicity. Known for her collaborative approach and strong client relationships, Kathleen creates spaces that reflect relaxed luxury and the essence of their surroundings.