Housing and Planning Bill

I am sorry to intervene but I cannot understand how this would work. I am not trying to be critical in any way; I only want to know how it would work. Can the noble Lord give us an example of a property purchased at a discount under this scheme? What would happen at its first sale? How would the price be determined? What would be the position of the estate agent selling the property? Would a valuer be involved? I am trying to understand the mechanism here. If it worked then it would be reasonable to consider it but, like the noble Lord, Lord Horam, I cannot see any mechanism that would make it work. Can he please explain?