North Helsinki is a major area in Helsinki, Finland that was part of Vantaa before the great annexation of 1946. Many single-family houses were built in the area in the 1940s and 1950s due to the settlement of front-line soldiers and evacuees. The term pakiloutinum describes the development of the later decades, when terraced and semi-detached houses were built on the large plots of single-family houses and terraced houses.