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.
Barnard Castle
Barnard Castle is a market town in Teesdale, Area Durham, England. It is named after the castle around which it was constructed. It is the major negotiation in the Teesdale location, and also is a preferred traveler destination. The Bowes Museum has the best collection of European fine as well as attractive arts in the North of England, housed in a wonderful 19th-century French-style estate. Its most famous display is the 18th-century Silver Swan robot, though art consists of work by Goya and also El Greco. Barnard Castle sits on the north bank of the River Tees, contrary Startforth as well as 21 miles (34 km) south-west of the county town of Durham. Neighboring towns include Bishop Auckland to the north-east, Darlington to the eastern and Richmond in North Yorkshire to the south-east. Barnard Castle's largest single company is GlaxoSmithKline which has a production center on the borders of community. Barnard Castle is for all functions (historic, ritualistic and also management) located in County Durham. The area border with the North Riding of Yorkshire was readjusted in 1967: that part of the town of Barnard Castle traditionally in Yorkshire was added to County Durham. Barnard Castle was the administrative centre of the former Teesdale area of County Durham up until its abolition on 1 April 2009. The community is now carried out by Durham County Council Unitary Authority, as primary authority and by Barnard Castle Town Council, as a parish. The Community Council chooses a ritualistic Town Mayor every year. It becomes part of the Bishop Auckland parliamentary constituency, which since 2017 is represented in parliament by Helen Goodman of Labour, though with a small majority over the Conservatives. It remains in the North East England area, which serves as a constituency for the European Parliament. Between 1894 and 1967 the town was administratively part of Barnard Castle Urban Area.