Covered area - maximum allowance

Can someone advise what is are the restriction of covered area on a 10 marla plot in bahria enclave.
I want to make basement+ ground + first floor.

Should i consider covered area for each floor or total on the plot?

Well the standard is, you have to leave 5 ft open from one side, 7 ft from back, 10 ft from front, and construct within this,

Thanks a lot- Presumably, it does not impact / restrict total covered area on the plot.

Depending upon the dimensions, yes the square left after taking setbacks out, you can build within that square,

I also intent to construct 35 x 70 plot at Bahria Enclave. What is the estimated cost of Basement. In fact, i don't require basement but plot has filling in backside; therefore, i intent to avail this opportunity.

Experts are requested to guide w.r.t benefits and drawbacks of Basement.

Regards

Well if you can afford then obviously basement is always useful, cost of basement can be told once you have the soil test report and structural design, approx would be 10-15 lac more for 10 Marla