Good point HJ.
This renovation is under city of Vancouver Inspections. I am a licensed contractor and personally carry 4,000,000 in liability insurance. My plumber who is connecting the drains and doing all the plumber work is also ticked and his company carries 10,000,000 liability insurance.
Working on the 19th floor of a waterfront condo here in Vancouver or any other city for that matter you don't want a crew without insurance!
We patch the through hole today and call for our first plumbing inspection tomorrow. Then I'll set the shower' pre-slopes and install the waterproofing measures then get the inspector back for a flood test inspection.
As with most condo renovations the local strata needs to give the client permission to do the work. This job obviously has it and including the city in the equation just makes sense. You can never have enough eyes on a job and if your renovating your home or condo you should do the same.