Buying a $150,000 house with $20,000 down and financing the rest with a 15-year mortgage at 5%. Then selling the house and paying off the balance of the loan in 8 years at a selling price, after commission, of $192,000. Don't forget the housing option does not include the cost of any repairs, maintenance, updates, taxes, insurance or market fluctuations. You will want to consider these items when determining if your profit is appropriate.