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.
In principle dealings in return for money like renting and trading between a Muslim and a non-Muslim are permissible provided such dealings meet the religious requirements. However, if such dealings lead to evil [sin] or something forbidden then they are not permissible.
There is no doubt that the celebrations of non-Muslims are not free from sins like the presence of women scantily dressed, drinking intoxicants and so forth. So renting the restaurant to them is in a way helping them in sin, so it is not permissible. Allaah says (which means): {Help you one another in virtue, righteousness and piety but do not help one another in sin and transgression. And fear Allaah. Verily, Allaah is Severe in punishment.}[Quran 5:2]. It is for this reason that the jurists stated that renting is not permissible if it brings a forbidden profit. Al-Hajjaawi from the Hanbali school said: 'Rent is not permissible if it yields a forbidden profit, like adultery and fornication, music, singing, turning the property into a church or selling intoxicants.'
Allaah knows best.