>> In the lawsuit they allege and present evidence that damage caused by construction on the adjacent property contributed significantly to the collapse.

Which is pretty much the same thing the developers/owners of the millennium tower in San Francisco are claiming - but to me that holds no weight. When you build a building, you can't just assume that nobody is going to do nothing nearby you for the next 100+ years - the building design should account for that; seems to me they are passing the buck, or at least trying too.