Is any permit required to install a gutter drainage system on a property? No pump or any electrical system would be involved.
Short answer is no,
Unless you live near wetlands.
Some towns will let you hook to their storm sewers (cause if you dump it near the street, it would get there anyway)
Permit and drawings needed.
This is what i know from working my property (branchburg) and one in Budd Lake - might be more to it.