If you are buying on the CDS then do not buy anything where there is the potential for building in front. If there is space they will build and you will endure at best 2 years of building noise and at worst lose your view.
There is no point buying anything unless the foreground is developed. Leave anything that looks as though it could become a building site (ie if you have undeveloped ground behind, beside or in front). Ignore any and all plans as they will either be ignored or modified in the years to come.
Be careful if you are after an “outlook”, as they rarely remain for long….