COA Barrett started as two companies in the early 1990s. Both located in Southern Maryland, they recently found common ground in a long-term partnership to serve the Maryland area in 2022. Now, together, we are an engineering, land planning, and surveying team that takes pride in shaping local communities. Our licensed surveyors and engineers have more than 90 years of combined experience working on projects that will shape the future for homeowners, business owners, and communities. Our goal is always to provide the highest quality services to Anne Arundel, Calvert, Charles, Prince George’s, and St. Mary’s Counties at competitive prices. Over our 25-year tenure, we have developed strong relationships with local planning boards, locally elected officials, the development community, and many valued individual clients. We plan to continue that trend for years to come. We provide a wide range of services, including Commercial Site Plans Residential Subdivision Design Building Permits Location Surveys Construction Stakeout Services Road Design Water & Sewer System Design Storm Drainage and Stormwater Management Design Wetlands Delineation and Location As-Built Surveys Boundary Surveys FEMA Elevation Certificates Forest Stand Delineation ALTA Surveys