Be careful how much you cut, there are legal restrictions on cropping woodland. I wanted to cut down some overgrown leylandii behind my house, and asked the planning office if it was OK. They said yes, no restrictions, I can do what I like. Fortunately I googled the matter - because the trees were outside the curtilage, other rules apply - without a license from the Forestry Commission you can only cut down a fairly small amount in any calendar quarter, and anything over that will attract swingeing fines and a requirement to replant with the same species of tree. I ended up taking down only a quarter of the trees in each calendar quarter, with witnessed photographic proof of what I'd done (just in case..).