London borough councils are the principal authorities in
Greater London and have responsibilities including education, highways, social services, libraries, recreation, waste, environmental health, housing development and revenue collection. Some of the powers are shared with the
Greater London Authority and the
Mayor of London, which also manage passenger transport, police and fire. Harrow voted in a Conservative council in its first election in 1964, and (excluding a brief three-year period of no overall control) Harrow remained Conservative-controlled till 1994. In that year, the Liberal Democrats became the biggest party on the council, although the council had no overall control. In 1998, Labour won a majority on Harrow Council for the first time. Labour lost their majority in 2002 and the Tories retook the council in 2006, only to lose it to Labour again in 2010. Although there was a brief period of no overall control, Labour won majorities in
2014 and
2018. In
2022, the Conservatives won a majority on Harrow Council, with 31 seats, while Labour were reduced to 24, defeating the incumbent Labour administration of twelve years, which had held a majority for eight of those years. Both the Tories and Labour stood 55 candidates each in 2022, while the Liberal Democrats stood 28 candidates, Greens stood 14 candidates, and Reform stood 3 candidates. 9 candidates stood as independents. In June 2023, Labour suspended a councillor, Phillip O'Dell, who became an independent. That same year, Mayor of London,
Sadiq Khan, expanded the
Ultra-Low Emission Zone to outer London (ULEZ). This was challenged in court by
Bexley,
Bromley, Harrow and
Hillingdon councils, although the court challenge was defeated. On 4 July 2024, the
2024 United Kingdom general election saw a Labour Party victory, with a total 411 seats. The Conservative Party saw a reduction in their total seats to 121, the lowest in their history, resulting in
Keir Starmer becoming Prime Minister. However, Labour had won this landslide on less than 35 percent of the vote, and a rapid collapse in Labour (and also Conservative) polling combined with the surge of Reform UK, has led to some political commentators suggesting that the two-party system has ended or has come close to ending. A new party, Arise, was formed in August 2025 with the backing of
Jeremy Corbyn. This party is led by Pamela Fitzpatrick, a Labour councillor between 2014 and 2021, then an independent councillor until 2022, and an independent candidate for Harrow West in the 2024 general election. They have announced that they intend to target
Marlborough ward. == Council administration ==