Danky, so sorry to hear of these buildings on your property borders - gut wrenching.
When we chose our villa off plan we were on an unmade road opposite the forest. Our nearest neighbour had a very large plot (and she had sold a part of her land to allow our development). We were told that her remaining garden was her pride and joy and she would never sell any more. Well, times change. She cut her garden in two, sold the half nearest us and there is now a 3 storey villa with pool 3 metres from our border - just about finished.
I've seen photos but will only see it in reality when we come in June. One piece of good fortune is that our Russian neighbours bought an adjoining plot and combined it into their gardens.