I also wonder if there is a home owners association for this neigborhood and if Mr Connolley is following their rules.
Created lakes can be owned. Natural lakes cannot.
Imagine if it were otherwise. Buy 500 acres in Florida and put a 100 acre lake in the middle. Do you now not own that lake?
Developers often dredged out swampy areas, made a lake, and took the dirt from the dredging to make lots. The developer then still owns the lake, and he sells the lots around it.
We actually have a case down here of a developer selling lake front homes and condos and then selling the lake to another developer who filled most of it in to build more condo's. Instead of overlooking a 300 acre lake, the original home owners now overlook a 50 acre pond.
Read your deeds, or better yet, hire a lawyer to read it for you!