Stavanger (English pronunciation: /stəˈvaŋə/; Norwegian pronunciation: [stɑˈʋɑŋər] ) is a city and municipality in Norway. The city is the third largest urban zone in Norway and the administrative centre of Rogaland county. Located on the Stavanger peninsula in Southwest Norway, Stavanger counts its official founding year as 1125, the year the Stavanger cathedral was completed. Stavanger's core is to a large degree 17th and 18th century wooden houses that are considered part of the city's cultural heritage and these are hence protected. This has caused the town centre and inner city to retain a small-town character, and even after the city's rapid growth in the 1970s onwards, the urbanization of the city center has been limited and a large share of the population still lives in detached houses.