Be very careful about this builder. One of my friends bought a flat from this builder and had some difference of opinion with them. The marketing head(Khalid) threatened him that he would eliminate him. Personally I would stay away from any individual or business that issues such threats. The probability of them acting on their words is probably less. But even if it is 5%, I would stay away from such people - nothing is more important than your safety. Tread carefully while dealing with this builder.