Bahria enclave 5 marla commercial, sector c, bahria enclave avenue.

Dear fellows,
Please advise on bahria enclave avenue sector c commercial 5 marla.

I am planning to buy one plot in the numbers between 60-90.

What should be the right profit on top of original booking fee paid by the seller.

Is there a change this these plots going up in 1 year's time??

Thanks & regards,