All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
It is not permissible for you to design such hotels which include night clubs and so on, which are dens for evil and corruption. The salary which you get from such work is forbidden because you are cooperating in sin and transgression with the owners and visitors of these hotels. Allaah Says (what means): {…but do not help one another in sin and transgression.}[Quran 5:2].
Whoever gives something up for the sake of Allaah, will be compensated with something better. For more benefit, please refer to Fatwa 82832.