Our business celebrates its thirty-second year in 2020 as an architecture firm specializing in custom residential and commercial projects, wineries, breweries, tasting rooms and event venues throughout northern Virginia. Located in Leesburg, the majority of our projects are in Loudoun, Fairfax and Arlington counties, though we have completed several projects in surrounding areas as well. We encourage our clients to come to us with their own design goals, ideas, needs and wishes. It is our objective to honor and fulfill these within a realistic budget while providing you with the benefit of our many years of professional design and construction experience. One of the strengths of our design process lies in our ability to listen to the needs of our clients and capture the feel of the space you are looking for. We recognize that each client’s goals are unique, so we approach each project individually. O’Neil Architects will help you define what you want to build, present options you might never have considered, and help you get the most for your valuable investment. Through sensible design, we can help control building costs, decrease energy needs, and increase the building’s future resale value.