It can cost anywhere from a few hundred dollars to $10,000 or more to install a putting green, depending on the size and complexity of the installation. Generally speaking, the more complex and realistic the green is, the more it will cost. One option for those on a budget is to install a small putting green in their backyard. You can find do-it-yourself kits online that come with all of the materials you need to create a basic green. Or you could hire a professional installer to create a custom green that meets your specific needs and requirements.