It is prudent when faced with an (potential) abandoned project that various precautionary measures be adopted.
One of the first things to go are the wiring, which are commonly ripped out from the walls. Therefore, one has no idea if there is wiring from point A to point B. The copper value is usually the primary reason for the vandals to do so.
Secondly, unpaid suppliers will usually sabotage the pipes etc. This may require very expensive and troublesome rectification as it would involve removing and destroying perfectly good fittings.
Thirdly, do be concerned about surreptitious "illegal" use of various sections of the project whilst the other parts are being "rectified".
Lastly, it is always strange but premises that all left long without use and unattended develop its own problems like leaking, stains, marks etc.
