Creating The Essence of Home
Welcome to Theo & Co., a boutique interior design studio serving clients in Arlington, Virginia and the 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.
Arlington Interior Designer
New Hampshire
Hackamore
OUR WORK
RECENT PROJECTS
Our full-service Arlington 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 an Arlington
interior designer
Theo & Co. Design offers full-service interior design and project management for homes in Arlington, Virginia 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
Arlington Interior Designer
URBAN ENERGY & NEIGHBORHOOD CHARM
Arlington, Virginia blends city convenience with neighborhood charm, offering a highly walkable lifestyle just minutes from Washington, DC. Its architecture ranges from classic Colonials and Cape Cods to Craftsman homes, townhomes, and thoughtfully designed new builds, creating a setting that feels both established and evolving. For interiors, Arlington homes often call for a balance of classic and current—spaces that feel warm, layered, and effortlessly livable, with thoughtful, collected details.
Tree-lined streets and historic homes in neighborhoods like Lyon Village give way to vibrant areas like Clarendon and Shirlington, where cafés, restaurants, and local breweries bring a lively yet approachable energy. With the Potomac River and Arlington National Cemetery nearby, along with scenic areas like Bon Air Park, the area offers a balance of history, natural beauty, and modern living.
I like to start the day with a walk or bike ride along the Mount Vernon Trail, followed by coffee or brunch at favorites like Bayou Bakery or Ruthie’s All-Day. An afternoon might include browsing local shops such as Le Village Marché, before dinner at Ambar, Busboys and Poets, or Green Pig Bistro (the options are endless!).
It is this blend of walkability, character, and everyday ease that makes Arlington such a special place to call home.
