@Pradeep RoyYour home inspector should be able to tell you the critical stuff.

Next build you might want to consider taking an option on the lot, and then working to have these mission critical items in place before you actually buy it.

Quote from @Tatenda Mpofu: A quick search suggested that the following surveys could be completed in the diligence phase of self storage facility acquisitionBoundary Survey: ALTA/NSPS Land Title Survey: Topographic Survey: Site Planning Survey: Floodplain Survey: As-Built Survey: I'm curious which of these are necessary versus nice to have ALTA/NSPS is critical, topo is useful for understanding drainage but some details can indicate that on an ALTA if you specify on Table A. topo needed if you're going to build anything on the excess land.as builts are quite useful for improved property.

Just want to be sure I'm not missing anything critical.

If you are buying a property, it is critical that you get eyes on that property

I could use the criticism and just want to not worry every month about vacancies, repairs, tenant not paying rent, etc. 

Taking action is critical in your strategy – without it, you’ll struggle to get the results you want.

We operate in Cicero a lot, and it is so critical to be able to be found by the town when something goes down.

Many investors use their business plan as a roadmap after acquisition3.In summary, thorough due diligence involving financial, physical, legal and market analysis is critical when purchasing a self-storage facility to mitigate risks and ensure a sound investment.

Not trying to be critical, just hate to see someone make a huge mistake like this...