Contrary to the widespread assumption that in imperial Germany urban affairs were conducted by a homogeneous ‘unpolitical’ notable elite until around 1900, a review of recently published case studies suggests that politics had entered local government by the 1870s. Frequent causes for the politicization of local affairs included confessional divisions, territorial change, or simply the wish of local elites to buttress their own positions. The ways in which liberals in particular took advantage of this emergence of political discourse at the urban level is highlighted by the case of Frankfurt am Main. The city's three liberal parties developed in competition with each other. Each managed to address and articulate the citizens' peculiar grievances with differing degrees of success. By 1880, public life inside and outside the town hall was conducted according to political ground rules, and this was accepted by every party. Against the still prevailing view of a rigid liberalism which after 1874 was in evident terminal decline, the decade after 1866 needs to be recognized as the period in which liberals took charge of municipal government across most of Germany, through the politicization of often highly individual local concerns with astonishing sophistication and flexibility.