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.
Barmouth
Barmouth is a town and also area in the county of Gwynedd, north-western Wales, pushing the tidewater of the River Mawddach and Cardigan Bay. Found in the Historic county of Merionethshire, the Welsh kind of the name is originated from "Aber" (estuary) and the river's name, "Mawddach". The English type of the name is a corruption of the earlier Welsh kind 'Abermawdd'. The community is offered by Barmouth railway station. The community grew around the shipbuilding industry, and also a lot more lately as a seaside hotel. Notable structures include the middle ages Ty Gwyn tower house, the 19th century Ty Crwn roundhouse prison and St John's Church. William Wordsworth, a site visitor to Barmouth in the 19th century, described it thus: "With a fine sea sight ahead, the mountains behind, the marvelous tidewater running eight miles [13 km] inland, as well as Cadair Idris within compass of a day's stroll, Barmouth can always hold its own versus any kind of competitor." Dinas Oleu (Citadel of Light), which is located east of the town on the adjoining hill, was the initial tract of land to be given away to the National Trust.