In most areas, you will not need planning permission. However, if the property is listed or in a conservation area, you will need listed building consent or planning permission to paint the exterior. A surveyor or architect's advice will be invaluable as they can help with this process.
Ferryside
Ferryside is a town in the neighborhood of St Ishmael, Carmarthenshire, Wales. It is 8.5 miles (13.7 kilometres) south of Carmarthen near the mouth of the River Tywi. Originally a ferryboat going across, then coming to be an angling village, it has established as a vacation and retired life area. The town has its own lifeboat station and also was the very first town in the UK to change from analogue to electronic television. Originating as a landing-place on the ferry route to Llansteffan (the ferry was used by Giraldus Cambrensis in 1188), Ferryside created as a fishing village. In 1844 the population of the parish was 895. Much of the village established after 1852, when it came to be connected to Carmarthen and Swansea by Isambard Kingdom Brunel's South Wales Railway.