working-class, with a high proportion of residents in public housing, and concentrations of low-income single people in the middle Antrim Road and Cliftonville areas. There are some upscale residential areas around Belfast Castle and on the slopes of Cavehill. Sectarian divisions are stark, with a number of Peace lines cutting through the constituency and occasional outbursts of sectarian street violence, and was the focus for post-ceasefire incidents such as the Holy Cross dispute. At the boundary commission hearings in September 2005 prior to the 2010 general election, the SDLP proposed extending the seat to Cloughfern and Jordanstown. The DUP supported the addition of Cloughfern. Sinn Féin were generally supportive of the commission's proposals. Following the revised recommendations, the Commission proposals were finalised and accepted by Parliament through the Northern Ireland Parliamentary Constituencies Order. History Belfast North is a constituency with a nationalist majority. Belfast North historically had a narrow unionist majority, which gradually decreased over time. The nationalist vote is considerable, and those from a Catholic background (47%) now slightly outnumber those from a Protestant background (46%), according to the 2011 census. It has generated particular interest for a number of highly unusual election results, as well as for several candidates and MPs prominently disagreeing with their parties. Of the five main political parties in Northern Ireland, four (the Ulster Unionist Party, the Democratic Unionist Party, the Social Democratic and Labour Party, and Sinn Féin) all have relatively strong support bases and routinely poll similar results. Other parties such as the Alliance, Progressive Unionist Party, Unionist Party of Northern Ireland, Conservatives and the Workers' Party have at times polled significantly, as have independent candidates, with the result that many elections have been won on comparatively low shares of the vote. The elections to the various assemblies have often seen the seats for the constituency heavily split – in 1998 no party won more than one Assembly seat. The area saw a steady out movement of Protestants during the Troubles, to some degree replaced by a growing Catholic population, although the overall population of the area fell sharply. However, all the inner-city communities in the constituency are now haemorrhaging electors, and the overall ethnic composition of the constituency now seems stable. The seat was consistently held by the Ulster Unionist Party from its creation until the 1970s. In 1972 the first notable dissent occurred when the sitting MP, Stratton Mills, dissented