The questions now being raised are over whether the building regulations were enough. Successive governments have reduced the "red tape" in the name of liberating the market, but it seems free markets will often compromise when it comes to safety.
That said, I'm not sure right now I would want to live at the top of the Shard (as some people do).
The concentration of super-money in W1 is what pushed prices up as the ripple moved out, at least more so than immigration. The fact the market is slowing at that end means there might be a ripple back, which coupled with a falling residency rate (July was the first month more people moved out of London than moved in for 10 years), means we might see a collapse and we can start to afford homes again.
In San Francisco, fwiw, the SFFD's largest aerial ladder is 100 ft fully extended. This is the mechanical one on the truck.
SFFD trucks also carry a 50-ft wooden ladder, but it's seriously heavy and rarely used, as it requires six firefighters to raise and lower.
For those interested, here's some data on high-rise fires in the US, including the prevalence of sprinklers [2].
[1] http://www.brontoskylift.com/en/hla [2] http://www.nfpa.org/news-and-research/fire-statistics-and-re...