The Importance of Home

About the Studio

Doma A+D is a boutique design practice, offering a full range of architectural services throughout Washington, D.C. and Maryland.

Each project begins with listening. We take time to understand how you live, what you value, and what inspires you, then translate that into architecture that enhances daily life. Working closely with builders, engineers, and interior designers, we guide you through the process with clarity and care, from concept to completion.

We specialize in residential renovations and additions of all scales, with a broad range of experience in both historic and contemporary design. We enjoy guiding clients through material and fixture selections, as well as designing custom cabinetry tailored to each project. Our work blends seamlessly with existing architecture, enhancing each home to reveal its full potential.

Most of our work comes through referrals, a reflection of the trust we build with every client and partner. Our greatest reward is seeing families settle into homes designed for inspired, effortless living.

Architect Katharine Scott, Principal of Doma A+D, portrait photo.

Principal, Katharine Scott

A native Washingtonian, Katie’s love for architecture began early, inspired by the city’s historic buildings, art, and gardens she explored as a child. She attended Georgetown Visitation and the Maret School before earning her Bachelor of Architecture from Cornell University.

Katie honed her skills at several of Washington, D.C.’s leading firms, including Hamilton Snowber Architects, Donald Lococo Architects, and Cole Prevost, where she specialized in historic work and single-family residences. She also expanded her experience internationally with commercial projects while at Lehman Smith + McLeish.

Katie lives in the AU Park neighborhood of Washington, D.C. with her husband and two children.

Rooted in her love of residential architecture, Katie established Doma A+D to craft spaces that are as livable as they are beautiful.

Architectural line drawing of a classic Washington D.C. home — Doma A+D design process illustration.
Bright sunroom with wicker furniture, colorful pillows, wood ceiling, and fireplace — residential architecture and interior design by Doma A+D.
Historic bathroom renovation with pedestal sink, white tile, and natural light — residential architecture by Doma A+D.

OUR METHOD

OUR WORK

REACH OUT

  • We had the pleasure of working with Katie Scott in connection with a gut renovation of a two-story condo unit in Washington, D.C. Katie did it all — conceptual drawings of what could be done with the space (before we agreed to purchase it), then detailed drawings that not only had to work for what we had in mind, but also had to take into account the building’s architectural review requirements. She also provided invaluable input on the design and decor of the space, from tiles to door handles to wallpapers and paint. The result couldn’t have been better. Katie focused on every detail of a very complicated construction project, winning kudos from our contractor for her sharp eye. When Katie takes on a project, she gives it her all. We were thrilled by the job she did and give her the highest possible recommendation.

    Ellen K. and Cary S.

  • Katie is not only a brilliant architect but also your true partner and advocate from your initial idea to project completion. She has tremendous attention to detail and always works to find solutions to the inevitable curveballs that arise.

    Paul K.

  • Dear Katie, We are so grateful for not only your stunning design for our kitchen, but also for your advocacy on our behalf throughout the entire construction project. It has been a delight to get to know you!

    Lisa S.

  • Katie - Thank you! I feel so lucky to be working with you. Renovating a 100+ year old house is no joke, but you are an awesome guide/sherpa/zen master/architect. I'm so appreciative of your attention to detail, thoughtful advice, gentle prodding, and expertise! Wanted to share my gratitude and admiration.

    Kate K.