It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.
Tintagel
Tintagel is a civil parish and also town situated on the Atlantic coast of Cornwall, England, UK. The population of the church was 1,820 people (2001 census), and also the location of the parish is 4,281 acres (17.32 km2). The parish population decreased to 1,727 at the 2011 census. An electoral ward also exists expanding inland to Otterham. The population of this ward at the exact same census was 3,990. The village as well as nearby Tintagel Castle are associated with the legends surrounding King Arthur. The village has, in current times, become attractive to day-trippers as well as vacationers, and also is just one of the most-visited locations in Britain. Treknow is the largest of the other negotiations in the parish, which likewise include Bossiney, Truas, Trebarwith, Tregatta, Trenale, Trethevy, Treven, Trevillet, as well as Trewarmett.