Re: Angel Cottage (Demolished)
To be fair, this was nothing to do with the IOC, ODA or any other of the acronyms relating to 'Olympic Development', (the mention of 'compulsory purchase' & 'Olympics' referring to the following photo may unintentionally give the wrong impression for this case).
This was entirely down to a property renovator, who, having purchased at auction the Grade II listed Georgian property built in 1826, wished to sympathetically restore the building.
However, upon removing some material (for 'matching purposes',of course), the entire property collapsed.
Overnight. (Well, over of a weekend, actually.)
For the avoidance of doubt, I am not implying that the rapidly increasing value of property/land in Stratford in anticipation of the Olympics had anything to do with it. Nor the idea that you could find any two-bob postage stamp-sized scrap of land and stick 'luxury apartments' on it was anywhere in this property owner's mind.
Here's a starting point to the story;
Try searching "Angel House E15 Demolished" or similar for more info.
It never was rebuilt.