You may need planning permission if you are planning a larger extension. All extensions will need building regulations approval. An architect can assist with this and if planning permission is required. A reputable contractor will also be able to advise you if this is needed as well.
Marazion
Marazion is a civil parish and also community, on the shore of Mount's Bay in Cornwall, England, UK. It is 2 miles (3.2 kilometres) eastern of Penzance as well as the tidal island of St Michael's Mount is half-a-mile offshore. At low water a causeway connects it to the town and at high water traveler watercrafts carry visitors in between Marazion and St Michael's Mount. Marazion is a flourishing tourist resort with an active community of artists who generate and offer paintings as well as ceramic in the community's art galleries. Marazion lies within the Cornwall Area of Outstanding Natural Beauty (AONB). Practically a 3rd of Cornwall has AONB classification, with the exact same status as well as security as a National forest. On the western side of the community is Marazion Marsh, a RSPB book and a Site of Special Scientific Interest (SSSI).