Indeed, all you have to do is to pass an ordinance to change the zoning from residential to commercial/industrial then go in and hand the owners a bottom of the market price for their property along with a short time frame to get out. In the past eminent domain was used entirely for the purpose of undertaking a project that served the public trust. Schools, highways, airports flood control dams etc. It would appear that it has now been expanded to include the aspirations and demands of private entrepreneurs.