Hey GLS
Welcome neighbour, and as I've already said on my thread - you prune any trees that come creeping over the boundary into your domain if they're in the way
My area is more densely populated. The only green space I've got worth speaking about is in the gardens of the well-to-do people living around the Compass Rose, and the waterfront itself, where people are want to take a stroll in the sunshine and through the trees, so maybe yours is more like a semi-protected open space? A parkland designated by the king perhaps? And people being what they are... I bet there are a few paths leading off the road that divides our properties into your area - just for picnics and whatnot
I'll pop off now and add your plot to the hyperlinked index
EDIT: confused about what you mean about 'basic heght breakdown'
If its the rather lovely drawing John did of several cross sections of the geomorphology of the limestone beds around the lakes, then I copied it into the FAQ thread, which you can get to at any time by clicking the link in my signature.