An engineering, surveying, environmental & land planning corporation with over 50 years of combined expertise proudly serving our local and regional clients.

COA Barrett: An engineering, land planning, and surveying corporation serving Calvert, Charles & St. Mary’s Counties for over 25 years.

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

Our Mission

Our Values

Interested in learning more about our services or have a project you’d like us to tackle?

Contact us today to get started.