How does your home make you money? With equity! You build equity over time as you pay down your home loan. In other words Your equity gains are built up through price appreciation and by paying off the mortgage through principal payments.” See the chart in this video showing what your average equity gains would be on an average home purchased 5, 10 or 30 years ago. Remember, your own equity gain will be different. It depends on how long you’ve been in the house, your home’s condition, any upgrades you’ve made, your area, and much more.