This exposes some of the issues one might have to work with can attempt to improve
These are the kinds of conditions builders are expected to endure to gain access to their work.
Late additions can end up being rushed, poorly carried out and leave the finished look scared. Whilst late additions can not be avoided, the warning is, keep them to a minimum and your eye on them!
As the project continues you will find items being added to the works and again problems razing their head, due to site issues.
Project Administrators, Sub-contractors and Contractors alike, need to be careful of these situation; they can be very costly.
Access can also be a serious problem, if Trades and project elements start fighting for access.