Rental market is not a free market. Is not like if you let the prices go up, you'll have more supply. There are building permits with harsh rules. The reasons

Rental market is not a free market. Is not like if you let the prices go up, you'll have more supply. There are building permits with harsh rules. The reasons of these permits and rules is to keep the city livable, beautiful and functional. Since you cannot build freely if left unchecked the prices would go to the sky. And you don't want that because functional city needs working class people, you need nurses, shop attendants, janitors, etc... Maybe you think city planning and urbanism are bad ideas and that we should let the free market magically solve all the problems.