According to data from the Census Bureau’s Survey of Construction, the custom home building share declined to 19.5% of all single-family homes started in 2018—lowest since mid-2000. Contractor-built or owner-built houses—that together make up the custom home building market—are built one at a time for owner occupancy on owner’s land with either the owner or a builder acting as the general contractor. The alternative is homes built for sale, on the builder’s land, with the intention of selling the house and land in one transaction.
While the percent share of custom homes slightly declined from 20.3% in 2017 to 19.5% in 2018, the number of custom homes started in 2018 was 172,000, the same as in 2017.
See more at NAHB’s Eye on Housing blog.