Legal Question in Construction Law in California

Maybe you can find my previous answers discussing the tree-trimming issue between neighbors. However, in summary:

Your neighbor has a right to trim the branches of your tree back to the property line, but if he exercises this right, he must do so at his own expense.

Your neighbor also has a right to sue you for trespass, and if he wins, as he probably would, the judgment will require you to trim the trees at your expense.

I agree mostly with Mr. Whipple. There is a key distinction, however, that he fails to address. The action for trespass would only succeed if you planted the tree. Naturally occurring trees and trees that existed before his house was built, cannot constitute trespass.