One family did ask their neighbors before they put up a treehouse. Probably should have been more specific. I’m Amy E. Feldman.
A family in Portsmouth, New Hampshire, checked with their neighbors before they put up a treehouse, and the neighbors were fine with it, until the treehouse that was built was 25 feet long, 8 feet high, and had a 168 square foot platform. The Portsmouth Board of Adjustment has now told them they must remove it.
As the weather turns nicer, many consider building treehouses, maybe to keep their kids out of the actual house, and those treehouses, according to HomeAdvisor, generally cost between four hundred and fifteen thousand dollars to build. Those featured on Treehouse Masters can cost a half million dollars. There are dozens of cases in which zoning boards have required people to remove treehouses.
While not all townships have permitting requirements, you should check with yours to see what’s required before you put up—and then have to take down—your Taj Ma-treehouse.