GRATTON v. CONTE

Opinion by

Mr. Justice Horace Stern,

An attack is made in these proceedings on the validity of an ordinance changing the zoning classification of a tract of land in the 14th ward of the City of Pittsburgh.

The Act of June 10, 1911, P. L. 872, established in cities of the second class a Department of City Planning in charge of a City Planning Commission. The Act of March 31, 1927, P. L. 98, authorized the Council in second class cities to divide the city into districts and to regulate therein the construction and use of buildings, such regulations to be made in accordance with a comprehensive…