Creating The Essence of Home
Welcome to Theo & Co., a boutique interior design studio serving clients in Northern Virginia, 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.
Northern virginia Interior Designer
New Hampshire
Hackamore
OUR WORK
RECENT PROJECTS
Our full-service Northern Virginia 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 Northern Virginia interior designer
Theo & Co. Design offers full-service interior design and project management for homes across the Northern Virginia 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
northern virginia Interior Designer
Timeless Charm with a Modern Perspective
Northern Virginia is a region where rich history meets modern sophistication. From the cobblestone streets of Old Town Alexandria to the rolling hills of Middleburg horse country, it’s a place of character and contrast. Historic estates and quaint taverns are found next to chic boutiques and vibrant neighborhoods, while the Potomac River provides a scenic backdrop. With a deep sense of history and a modern way of living, Northern Virginia inspires classic interiors that feel welcoming and refined.
From sourcing trips along King Street in Old Town Alexandria, with lunch on the waterfront and a visit to the Torpedo Art Factory, to a scenic drive through rolling hills to Lucketts for antiques — paired with lunch and boutique shops in historic Leesburg — Northern Virginia offers endless design inspiration. I love spending a day (or weekend!) in Middleburg, visiting favorite spots like Creme de la Creme and Federal & Black, and ending with a glass of wine at the Red Fox Inn and Tavern.
