I'm sure there was a documentary made about this, (ages ago). He (Charlie) seemed happy enough, and agree with Venice and Cools about the quality of the build. Is the land still undeveloped ? If it is, questions should be asked at the Planning Department, and if no decent reply,then Frank Field may have the answer.
To knock down homes/houses for re-development ,and then leave the land for years is nothing short of a fix on behalf of one department or another and /or someone turning a blind eye, i.e. if the land has been sold off. Not sure about all the detail, so my assumptions, may not be correct at this present time, there again why would TC show the vid if the situation is still much the same.
Humankind has not woven the web of life. We are but one thread within it. Whatever we do to the web, we do to ourselves. All things are bound together. All things connect.