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.
Godstone
Godstone is a village as well as civil parish in the county of Surrey, England. It is centred 6.3 miles (10.1 kilometres) east of Reigate at the joint of the A22 and also A25 roads, and near the M25 motorway on the escarpment of the North Downs to the north. In its much southern, it has a train station, with its own little community South Godstone separated by agricultural land. Two various other communities exist tied to Godstone, The Enterdent as well as Blindley Heath, which includes Blindley Heath Site of Special Scientific Interest. The Greensand Way and the North Downs Way go through areas of Godstone. Godstone has a smaller sized population than Oxted 3 miles (4.8 kilometres) east which is the administrative centre of its mid-unit of local government, Tandridge District. Westerham, Kent is 6 miles (9.7 kilometres) eastern. The county town of Guildford is 22 miles (35 kilometres) due west and also London is centred 18.1 miles (29.1 kilometres) north.