Junge's Appeal. (No. 1.)

Opinion by

Keller, J.,

This appeal grows out of the Zoning Ordinance of the City of Pittsburgh (No. 372, approved August 9, 1923), enacted pursuant to the Act of June 21, 1919, P. L. 570 and its amendment of May 11, 1921, P. L. 503, and the Act of May 1, 1923, P. L. 122.

The material facts in the case are as follows: John T. Costello is the owner of premises No. 804 Bellaire Avenue. The said lot is located in what is described in said ordinance as a “first area district.” The ordinance requires that in such district every one-family dwelling thereafter erected “shall have a side yard on each…