Create infrastructure investment bonds to build world class roads, metro, power stations, etc... at the same time the federal government should sell off land plots at cheap prices to the developers. Residential and Commercial. Developers can create ETF bonds to finance development then resell at higher prices.
Everyone makes $$$
Most cities in Pakistan are expanding towards the outer suburbs. This is natural trend of urbanization. Here in the states major cities such as Atlanta, Charlotte, Dallas, Houston, and Los Angela have a scaled out development model where the metros extend into suburbs over 40-50 miles from the city center. Infact larger scaled out cities have outgrew cities such as New York, Chicago, Miami, etc (vertically developed cities) by a long shot and have much better standards of living.
Pakistan simply has enough land to cater to its populations urbanization. And extending into suburbs provides way cheaper land prices to develop benefitting the middle class/poor.