GDC is an established ISO9001:2015 Accredited Engineering Consultancy Organisation based in Hamilton (Head Office), Thames, Whitianga, Rotorua, Wellington, Napier, Auckland and an office in Asia. We offer a complete Professional Engineering service to Educational, Institutional, Commercial, Industrial, Central and Local Government Clients. The GDC team has extensive experience in the Planning, Investigations and Design and Construction Management of Building/Infrastructure Projects across New Zealand and Overseas. Our Core services include: Civil & Structural, Earthquake Assessments, Geo-technical work, Environmental Engineering, Water/Wastewater/Stormwater Design, Road Design, Traffic and safety.