Construction loan

A construction loan (also called a home construction loan in the United States and self-build mortgage in the United Kingdom) is any value added loan where the proceeds are used to finance construction of some kind. In the United States Financial Services industry, however, a construction loan is a more specific type of loan, designed for construction and containing features such as interest reserves, where repayment ability may be based on something that can only occur when the project is built. Thus, the defining features of these loans are special monitoring and guidelines above normal loan guidelines to ensure that the project is completed so that repayment can begin to take place.

Almost all lenders are concerned that their money lent is repaid, so underwriting of construction loans usually focuses on how that might occur.

In the most basic situation, that of an individual building a home for themselves, a business building a property for business use, or an investor building a property to rent out, the fundamental guideline is for the lender to imagine once the loan has been fully extended and converted into a normal mortgage and the building is occupied, whether the individual, business, or investor can afford to pay back the loan on a monthly basis. In the case of the individual, where the lender attempts to predict whether the individual can pay each month the loan payment that would occur once the person moves into the house, the lender would be primarily looking at the amount of income the individual receives. In the case of the business, a similar analysis would occur. In the case of an investor building rental property, a special appraisal would be ordered which would attempt to predict what the rents will be and whether they will be enough to pay back the loan, plus all expenses and still give the renter a certain minimum amount of income. 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.

...
Wikipedia