But, when we first bought our first home, we did do the sensible thing and bought a tiny 2 bedroom shoebox on 180sqm. We've got 3 kids now. When our first was 10 months old, we sold and bought a bigger house which we did an extension on 2.5 years ago, which increased our mortgage by $173k. If I could go back in time, I would've ignored the advice and bought the house of our dreams first as before we had kids, we paid off a sh1t load off our mortgage and I feel like we started all over again upgrading and doing an extension. We would've had a much lower mortgage today had we bought our dream house first as we would've had more money to pay off our mortgage before kids.