Appraisers don't appraise homes, they actually appraise property rights. I have personally appraised properties damaged by storms, involving bulkheading, docks. etc. When it comes to these situations, I have generally been engaged by an attorney or accountant, who tell me exactly what they need. Depending on the particular circumstances, it can vary from replacement cost, to before and after valuations (i.e., value of property with dock versus value of property without dock). It's very important to determine what is needed, because the appraisals needed can be expensive, and it is best to make sure that the correct valuation method is utilized from the outset.