Instead of fixing up an older home and hoping that a buyer likes the improvements, builders are welcoming buyers into the process much earlier, allowing them to customize the renovation with their choice of countertops, cabinets, colors, tile, and more, Time reports.

Normally, a model home is a brand-spanking new, never-lived-in property that serves as a showcase for a new real estate development. A company in Baltimore called Charm City Builders is in the process of building its own model home—only theirs is a rowhouse that’s more than 100 years old.