Creating The Essence of Home
Welcome to Theo & Co., a boutique interior design studio serving clients in Bethesda, Maryland and thee Washington DC area. Known for our relaxed, yet refined aesthetic, we design spaces that are as warm and inviting as they are sophisticated. We infuse each home with depth and character, incorporating details that reflect your personality and tell your story. It’s the details – collected mementos, meaningful artwork, and family heirlooms – combined with a thoughtful, functional design that creates the essence of home.
Bethesda Interior Designer
New Hampshire
Hackamore
OUR WORK
RECENT PROJECTS
Our full-service Bethesda interior design firm focuses on personalized designs that are authentically you.
We strive to capture the essence of home through storied interiors inspired by the lives of our clients and the rich history of the homes and landscape that surround us. Using earthy tones and textures, a mix of vintage pieces, clean lines, and modern silhouettes, we curate a balanced, layered look that is warm and welcoming. Working closely with you, we achieve a custom design for your home that is a reflection of who you are and how you live.
Our goal as a Bethesda
interior designer
Theo & Co. Design offers full-service interior design and project management for homes in Bethesda and across the Washington, DC area. Whether you're refreshing a single room or tackling a full renovation or new build, we bring clarity, creativity, and a streamlined approach to every project. Explore our services to see how we can transform your vision into a beautifully designed, move-in-ready space.
Our
Services
cristine k.
"My husband and I have used Theo & Co. Design for several rooms in our house over the last few years. In all instances, Diane was able to quickly understand the aesthetic we were hoping to achieve and presented us with several choices for how to redesign our rooms. We appreciated how stress-free she made the whole process, from presenting us with visuals, providing us with plenty of price points and purchasing options, and completing the look with finishing touches — we couldn’t have been happier with our final rooms. We are already looking forward to working with Theo & Co. again in the future!"
Kind Words from Past Clients
Bethesda Interiors Designer
SOPHISTICATED STYLE & EVERYDAY EASE
Bethesda is a lively community just northwest of Washington, DC, where a thriving downtown blends beautifully with welcoming residential streets. Tree lined neighborhoods are filled with classic Colonials, charming bungalows, and thoughtfully designed new homes, creating a setting that feels both established and fresh. With boutiques, cafés, and restaurants within walking distance, Bethesda offers an easy, connected way of living. Bordering the scenic Capital Crescent Trail, the area pairs a vibrant social scene with access to beautiful outdoor spaces. It is a natural backdrop for interiors that are warm, layered yet sophisticated.
On a favorite Bethesda day, I’ll begin with a walk along the Capital Crescent Trail. From there, I often stop into local shops like Urban Country or Serena & Lily for design inspiration. Outings might end with lunch at Aventino Cucina or Mon Ami Gabi — the kind of relaxed yet refined spaces that reflect what I love most about this area. It’s this blend of everyday ease, beautiful surroundings, and modern convenience that makes Bethesda such a special place to call home.
