Retaining walls less than 2 feet high do not require a permit. Site plan must show the proposed wall location. Maximum height is 6 and a half feet in rear or side yards and 3 and a half feet in front yards (3 feet for corner lots). Retaining walls can be placed up to, but not beyond, the property line. All documents and plans shall be uploaded to the online permit portal in PDF format. Plans shall be uploaded as a single PDF file.