Other nearby buildings drove pilings to bedrock. Millennium Tower did not. The City of San Francisco would have had to approve of the construction and should

Other nearby buildings drove pilings to bedrock. Millennium Tower did not. The City of San Francisco would have had to approve of the construction and should have insisted that pilings be driven to bedrock. It shows that people cannot trust builders or city engineering departments. The lesson is that if buying a newly constructed place, you should probably hire your own engineers to evaluate.