What is the ruling on residing in lands not designated for housing, and is it permissible for someone in dire need to pay a bribe for that, and what is the ruling on trading by building and selling houses therein?

It is impermissible to construct dwellings, trade, or pay bribes on land designated for public interest, nor is it permissible to reside there except in cases of necessity. However, if the laws deviate from the public interest, it is permissible to circumvent them. It is permissible for the landowner to pay a bribe to build on the land, and the sin rests upon the one who accepts the bribe. Bribery is a major sin, except when one uses it to attain a right or to avert injustice or harm, in which case the sin rests upon the one who accepts the bribe. Laws that serve the public interest and do not contradict Sharia must be adhered to. As for laws that are not obligatory to adhere to, it is permissible to violate them if the violation does not lead to hardship. There is nothing in Sharia that prohibits building on agricultural land or selling it for construction, as long as it does not harm people. The state may issue laws prohibiting this if it deems it to be in the true public interest.