There is no town of Portwin in Cornwall: series Doc Martin starred in the village of Port Isaac (423 kilometers from London on West) in breaks between tourist seasons. The place is really beautiful and popular, and the tourism there receives more superficial treatment. Doc Martin’s famous house was filmed entirely from the outside — the interior and furnishings were built on a farm outside the city. All the relevant scenes were filmed there. The surgery of Doc Martin is situated on Roscarrock hill. The school, where Louise directs, was filmed in the building of a local restaurant, which used to be a really a primary school.