Creating The Essence of Home
Welcome to Theo & Co., a boutique interior design studio serving clients in Potomac, Maryland and the Washington DC metro 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.
potomac Interior Designer
New Hampshire
Hackamore
OUR WORK
RECENT PROJECTS
Our full-service Potomac 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 Potomac interior designer
Theo & Co. Design offers full-service interior design and project management for homes in Potomac and the Washington DC metro 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
potomac Interior Designer
ROLLING LANDSCAPES & EQUESTRIAN CHARM
Potomac is known for its beautiful homes, rolling landscapes, and unique blend of rural charm and suburban convenience. Just minutes from DC, the area feels worlds away, with winding country roads, expansive estates, and beautiful horse country creating a sense of privacy and tranquility. From stately Colonials to custom-built residences, Potomac's homes reflect a timeless elegance that pairs naturally with warm, thoughtful interiors.
After living in Potomac for 23 years, I developed a deep appreciation for the area's natural beauty and strong sense of community. A perfect day might begin with a walk along the C&O Canal or hiking the Billy Goat Trail in Great Falls, followed by an afternoon browsing at Potomac French Market for vintage finds, home accessories, and European-inspired treasures. As the day winds down, there's no better place to enjoy dinner outdoors than Old Angler's Inn, while Hunter's Inn remains a longtime favorite gathering place for Potomac residents.
It is this combination of natural beauty, equestrian charm, established neighborhoods, and understated sophistication that makes Potomac such a special place to call home; and a natural source of inspiration for interiors that feel welcoming, collected, and timeless.
