What is the ruling on the owner violating the specified building ratio, or renting out part of the parking allocated for cars, knowing that the remaining part is barely enough for the vehicles of the household members?

Scholars have stipulated that the ruler may restrict permissible matters if there is a public interest in doing so. It is not permissible to violate these regulations as long as they serve the public interest. What was asked about falls under the public interests that the ruler may restrict for the benefit of the people and to ward off harm from them. Therefore, it is not permissible to violate them. Interests may be evident or they may be hidden, and experts and specialists can be consulted to understand them.