Is it permissible to deal with banks specializing in financing housing projects, such as the Housing Bank currently, to purchase a dwelling?

There is no objection to purchasing homes through banks if the bank first buys the home and then sells it to the client in installments at a higher price. However, if the bank undertakes to pay the price of the home on behalf of the buyer, for the buyer to then repay the lent amount to the bank with an increase, this is impermissible because it is a loan that draws benefit, which is usury (riba) by scholarly consensus.