Just moved and new house's small garden faces SW with a 3m patio, steps down to a lawn approx 15m wide and 10 m long, sloping down to this house that blocks our views. Wonderful views only on either side of this huge house (block of 4 flats I think)only about a metre away from the bottom of our lawn which is edged with overgrown shrubs and climbers. The house has a neglected looking flat roofed extension and a large scruffy window(upstairs)that overlooks us. We can only see the top of their downstairs windows due to the slope and our garden fence and undergrowth. Id like to plant a tree that would quickly grow to 15-20 feet to screen/distract from the window -but have ruled out birch as too large for this small garden? Id like something very wildlife friendly and not necessarally evergreen. Could anyone help? Weve only just moved in so werent going to do anything much thus first year except plant a couple of trees, there being none in the back garden!