Public property owned by the township with private residential property. Exception for real estate photography: you can take off and land from private property but must stay within the boundaries of the property and adjacent street/s with data collection limited to the property you are shooting.And the entire 18 miles is private property owned by the township? If so, you're out of luck.
And my point is that we shouldn't be out of luck. If that's the case, the FAA's Congressionally-issued power to be the sole controller of the airspace is a moot point and goes out the window in cases where the airspace is ultimately controlled by the towns beneath it via land use rules.