FHA is interested in the marketability of houses it insures. FHA has a "3 S test" that refers to Safety, Security and Soundness. As an appraiser I apply the 3 S test when inspecting properties for FHA purposes.

An FHA loan is insured by the Federal Housing Administration, a federal agency within the U.S. Department of Housing and Urban Development (HUD). The FHA does not loan money to borrowers, rather, it provides lenders protection through mortgage insurance (MIP) in case the borrower defaults on his or her loan obligations. Available to all buyers, FHA loan programs are designed to help creditworthy low-income and moderate-income families who do not meet requirements for conventional loans.

FHA loan programs are particularly beneficial to those buyers with less available cash. The rates on FHA loans are generally market rates, while down payment requirements are lower than for conventional loans.