DLH DESIGN ,LLC is a new company in name only. David Haught, AIA has recently purchased Lee & Haught Architects , LLC and now looks forward to continued growth while serving our clients in the Mid-Ohio Valley . DLH DESIGN, LLC , is a Marietta, Ohio based firm and we provide comprehensive Architectural Services for projects in our local Ohio and West Virginia area. We are capable of providing Architectural Services for all types of projects including custom home designs, restaurants, religious, mercantile,and industrial as well as community and commercial buildings.