Maddy and Drew Olson built their own home to ensure their mortgage payments were affordable. Maddy Olson Maddy and Drew Olson wanted to own a home, but they didn't want an expensive mortgage. They bought a lot and built a house themselves in Washington, setting their budget at $209,000. Because they built the house themselves, their mortgage is less than $1,000. Maddy Olson had never tiled anything before when she set out to tile the two bathrooms in her new home. That wasn't going to stop her