Cornwall Sustainable Building Trust. Poynton, Bradbury, Wynter and Cole Architects. Penwith District Council. Kerrier District Council. The Dandelion Trust. Total Communications Infrastructure Ltd. The Cornish Mutual Insurance Co. Featured below are just a few of the positive testimonials that we have received. "No-one looks forward to the builders moving in but you lot were OK!" - Sue Ford. "Thank you very much for doing a lovely job, we're delighted." - Amanda Gluyas-Morrish, Church warden, Crowan Church. "Optimal did an excellent job on Crab Rock Cottage." - Mike Bradbury, Architect.