Ordinance amending the Pittsburgh Code, Title Nine, Zoning, Article I, Section 902.03 Zoning Map, by changing from R1D-L, Residential Single-Unit Detached, Low Density District to P, Parks District, all that certain property bounded by Greenside Avenue; lot number 68, block 36-C in the Allegheny County Block and Lot System; lots numbered 120, 110, 92 and 68, block 17-R in the aforesaid system; lot number 100, block 17-S in the aforesaid system; the existing Medhurst Street right-of-way; lot number 278, block 36-D in the aforesaid system; lot number 312, block 36-C in the aforesaid system; the existing P Parks Zoning District boundary line; and lot number 72, block 36-C in the aforesaid system; 20th Ward.