Common Surveys Performed During Diligence

[Tatenda Mpofu]

I am working through a PSA for the purchase of a self storage property and I would like to know what surveys you would say are

a) critical

b) nice to have

c) unnecessary

when acquiring a self storage facility especially given standard exceptions in title policies.

[Tatenda Mpofu]

A quick search suggested that the following surveys could be completed in the diligence phase of self storage facility acquisition

1. Boundary Survey: 
2. ALTA/NSPS Land Title Survey: 
3. Topographic Survey: 
4. Site Planning Survey: 
5. Floodplain Survey: 
6. As-Built Survey: 

I'm curious which of these are necessary versus nice to have