The British period brought great changes to the country in general and to Jerusalem in particular. Electricity, running water and the construction of modern roads and buildings changed the face of the city. Urban master plans prepared by the British helped maintain the fabric of the city walls and the Old City and its surroundings. Municipal bylaws were passed to ensure that Jerusalem’s buildings would be built or covered with stone to preserve its character. The various government institutions were located in Jerusalem, the area of the city grew fourfold and the population tripled.