Hello Rod,
Welcome to the website. I agree with you in part, unless something happens soon with the Chadwick Street Development then ASDA will win their case to develop Hibbert Lane. But I don't know why you are mad at the Council. They didn't sell the land to ASDA, they are just faced with the problem of keeping the College in town when they have no jurisdiction over the issue. Half the local Councillors have already said that they don't want the development, that they would vote against it and whether you believe them or not, and I've got my doubts, they can't really do any more to oppose it.
Everybody seems to focus on the ASDA but not on the College. I was talking to one of our local Councillors over the week-end and he/she (I won't name, it was a casual conversation) said ..."surely the prospective education of our young People and the continuance of the College in Marple is just as important if not more important to the people of Marple than where we buy our groceries from". And you know he/she is right !