 The key point here is that no matter how valuable the building might be once completed, almost no lender would extend a loan for more than what the occupier could afford, because even though they will not have to make any payments during construction they would have to make monthly payments once completed and there can be no assurance that the owner would pay down the loan enough to make the monthly payments affordable once the project is completed.Beyond this guideline, the next most common rule is a minimum cash injection requirement.Even if, for example, a business might be able to afford a monthly payment of a loan high enough to pay for the entire construction project, many lenders would require them to instead use a certain minimum portion of their own cash to complete the project.