Istanbul coasts have been under pressure due to anthropogenic activity and filling both natural and unnatural methods since Roman time. Only narrow Beylikduzu coasts are still virgin in Istanbul coasts because of some land use decision of ex-municipality board, low population of coastal areas of Beylikduzu, low road density of south part of Beylikduzu, highly pullulated river input. Coastal engineering and river regulate projects started in 2005 and some small engineering project finished to support main projects. Each project has unique and new approach to management both coast and river basins. Their results and sub results give us very important experiment to approach virgin areas in metropolitan areas such as Istanbul.