TNI Building Designs - Architecture firm Established in 2011, we provide a local, sustainable & professional Architectural Service covering all aspects of Building Design, Construction and The Built Environment. We provide Architectural Design, Planning & Building Regulations for new build housing, extensions, renovations and alteration work on all types and sizes of projects from new builds to listed buildings & everything inbetween. We use the latest technology & expertise to assist you through the whole pre-build process. We are based in Gloucetershire and cover Bristol, Wiltshire, the Cotswolds and surrounding areas.