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Duplantis Design Group (DDG) is a comprehensive design firm and is exceptionally experienced in managing all aspects of a development project. In addition to our design services, we also provide clients with conceptual site planning and master planning, site investigation reports, assisting with property acquisitions, representation at public hearings, permitting, entitlements, and construction administration.

DDG has successfully completed over 3,500 projects across the Gulf Coast Region. Our firm's portfolio is vastly diverse in project types - industrial, commercial, retail, single-family and multifamily subdivisions, education, municipal projects, master planning and feasibility studies, parks and recreation, coastal restoration and protection, and medical - just to name a few.
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In 1997, DDG began as a small, civil engineering firm based in Thibodaux, Louisiana. From the very beginning, we believed that exceeding our clients' expectations was the only way to achieve long-term success. In the 24 years since our founding, our unwavering commitment to client service excellence has allowed us to grow into a multidisciplinary regional firm with over 100 full-time employees and 7 offices across South Louisiana and Texas - Thibodaux (headquarters), Covington, Baton Rouge, New Orleans, Lafayette, Mobile, and Houston.
DDG offers comprehensive Project Management Services and can support an Owner and serve as the integrated primary, single point of contact that is involved in all aspects of the project and will serve as the Owner's Representative throughout the project lifespan. This strategy provides a holistic planning and management approach resulting in an improvement to overall project performance, greater compliance with regulatory requirements, reduced cost, improved overall schedule, lowered Owner risk, maximization of Subject Matter Experts, and many other benefits.
The DDG Civil Engineering team began with the founding of the company in 1997. Embracing the challenges of the private development world, DDG has diversified and now applies the attention to detail and commitment to our core values to all projects for both private and public clients. Our client and project types are diverse and include architects, development firms, national retailers, industrial and manufacturing facilities, governmental agencies and municipalities.Our experience across many types of projects has forged strong relationships with the many local, state, and federal agencies which play an increasing role in the permitting and entitlement of projects of all sizes and types.
DDG's Architecture division is honored to celebrate a long history of creating exciting architectural environments since 2000. A strong foundation in retail architecture quickly led to growth in numerous areas of practice including, but not limited to: corporate headquarter buildings, educational environments including K-12 and higher education, museum and interpretive spaces, multi-family dwellings, mixed use developments, master planned communities, financial institutions, correctional institutions, large industrial facilities, and medical facilities.
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