This is how my grandfather started his home-building business. He built one house using scraps, cutoffs, and reclaimed materials from demolitions. Once he completed the house a local man who had been watching the construction offered to buy it. He sold that house and made enough money to buy another lot and build another larger house. People started coming to him to have him build homes and he became a custom home builder, building homes, churches, businesses, etc. all over the area for around 60 years till he passed away.