Michael,
You have missed the point and are quite naive in your response.

"If the nursery ceases operation the entire house reverts to a single dwellinghouse (one of the planning conditions). Any further change would need to go to a planning committee, even a doctor's surgery would require planning permission."

I said if the business had new owners - not if the business ceased operation. This is typical of how the argument gets twisted.

Again, your other responses are typical of trying to devalue the other position by not understanding or refusing to understand the power of setting a legal precedent.

And actually, if you think about it, it wouldnt be too surprising if the Council had the power to sell off the Triangle to a property developer, they would have done it by now (despite local opposition). And surprise surprise authority for a small Sainsbury's local is granted several years later - as it's better than having a constant building site opposite the park due to the developers changing their minds as to what will build. That's a wonderful legacy for our grandchildren!