Look at your income and expenses, and get a good idea of where your money is going now. Most lenders say that your housing payment should not be higher than 28% of your pre-tax monthly gross income. However, if you have more expenses, this percentage might be lower. After you figure out a number you’re comfortable spending on a mortgage, use a mortgage calculator to find out how much home you can afford at current interest rates. At Tim O’Brien Homes, we believe in budget transparency. This means we’ll work with you to reconcile your favorite floor plan, your wish list, and your budget to build an affordable home you love.