I am going through a similar situation SteveSx1,if you have written a letter to the planning office against the build they are supposed to keep you informed of any further action regarding that application.When my problem went to appeal I was asked by letter if I had anything else to add and invited to the appeal hearing, as was everyone else who had written. At the meeting we requested an on site visit so that the appeal official could see for himself how it would affect everyone and he actually came, looked and talked to both parties. We are still waiting for an outcome. One thing though,you are not entitled to a view, but they can't overshadow your property or build above the roof line of adjacent properties. If you are worried about the way the planning office has dealt with this ask to talk to the officer who is dealing with it and voice your concerns.