12 Downing Street

12 Downing Street is a historic government building in London, traditionally serving as the office of the Chief Whip and now part of the Prime Minister's operational space. Owned by the Crown since 1803, it has a rich history, including housing the Judge Advocate General and the Colonial Office. The building was remodeled in 1846, connecting it with 10 and 11 Downing Street. Notable events include its use during World War I as a recruitment headquarters and the birth of Herbert Gladstone within its walls. It became a Grade II listed building in 1970 and has evolved to accommodate modern governmental functions, reflecting its ongoing significance in British politics.