Interior Design Studio Serving Washington D.C., Maryland & Virginia

At 3SI Design, we specialize in Organic Modern interior design for both residential and commercial spaces throughout the D.C., Maryland, and Virginia area.

Our mission is to help homeowners and business owners bring their dream spaces to life—through thoughtful design that blends natural materials, clean lines, and timeless comfort. Whether you're renovating a home, furnishing a new space, refreshing a single room, or elevating your storefront or office, we’re here to transform your vision into a beautiful, functional reality.

Explore our About Us page learn more about our design philosophy and process.