Yes. City regulations cover the type of building materials allowed, orientation, height and opacity. Fences in front yards cannot exceed 4 feet in height and a maximum opaqueness of 60%. Fences located in any side or rear yard, including corner side yards, cannot exceed 6 feet in height, except in the I-1 and I-2 Districts, where they cannot exceed 8 feet in height. Additional regulations and or standards may apply and can be found here. A building permit is required before constructing a new fence or replacing an existing fence.