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.
Welshpool
Welshpool is a town and also area in Wales, traditionally in the county of Montgomeryshire, yet currently carried out as part of the unitary authority of Powys. The town is situated 4 miles (6.4 km) from the Wales-- England border and low-lying on the River Severn; its Welsh language name Y Trallwng suggests "the marshy or sinking land". Welshpool is the 4th largest town in Powys. In English it was initially referred to as Pool however its name was changed to Welshpool in 1835 to distinguish it from the English community of Poole. It has a population of 6,664 (UK Census 2011), consists of much Georgian architecture and also is just north of Powis Castle. The local economic situation is mainly based upon agriculture and also local market. The Smithfield Livestock Market is the largest one-day lamb market in Europe, whilst the town's industrial estates are home to numerous different types of little industry. As a result of the town's tiny size as well as population the attraction of high street shops is limited, implying much of the residents are required to go shopping in adjoining communities like Newtown and also Shrewsbury.