A production builder focuses on building homes, townhomes, condos and rental properties, generally on land that is owned by a building firm. Sometimes they offer homes and land as a package. They typically offer a few house plans to choose from, or sometimes use stock plans or plans developed by the firm that hired them to complete the project. These options allow buyers to choose which plan they prefer from a menu in a variety of product categories.Production builders complete a large number of projects each year. They operate under the assumption that if it is there, someone will buy it. Homes are completed whether buyers are lined up or not, with the understanding that eventually, the properties will sell.