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.
Langport
Langport is a village as well as civil parish in Somerset, England, 5 miles (8.0 km) west of Somerton in the South Somerset area. The church (which covers only part of the town) has a population of 1,081. Langport is contiguous with Huish Episcopi, a separate church that includes much of the town's borders. Langport rests on the eastern bank of the River Parrett, below the factor where that river is signed up with by the River Yeo (Ivel). There is an embankment throughout the moor and an important bridge over the river. Below Langport the Parrett is tidal. The rivers flow from the southern hills with Thorney Moor and Kings Moor, via a gap between the upland areas around Somerton and also Curry Rivel, onto the Somerset Levels where it streams previous Bridgwater to the Bristol Channel. Throughout the winter months the low-lying locations around Langport are sometimes swamped. The community falls within the Non-metropolitan district of South Somerset, which was based on 1 April 1974 under the Local Government Act 1972, having previously belonged to Langport Rural District. The area council is in charge of neighborhood preparation and structure control, regional roads, council real estate, environmental wellness, markets as well as fairs, decline collection and recycling, burial grounds and crematoria, leisure solutions, parks, and tourist.
