Dependent on the project requirements, Terren works with local townships to obtain the proper permits for each project. Most projects that include hardscaping require permitting.We highly recommend property surveys for projects that will ultimately go through the township for permitting, such as designs that include hardscape items. Additionally, surveys are important for any project near unmarked property lines. Our designers will let you know during the initial meeting if they recommend having a survey drawn for your project.It is important to note that the cost of a boundary survey or elevation survey is an additional cost done by an outside team. We have our own preferred team for this, but you are welcome to use your own or supply these surveys if you have them already.