Doug Wegener said:
I dont agree an adjustment should be made. If you cant extract a basis for an adjustment then an adjustment should not be made.
Doug-
Not all adjustments can be market extracted and don't need to be.
If, based on the appraiser's opinion, there is a negative influence to a property, it should be analyzed. If there is no "paired sales" to pair-up, which would happen in this specific since the poster said the arrangement was unusual, then the appraiser can use other methods. For this specific, it would be relatively easy to say
the adjustment is no more than the cost of a new well, and take the process from there.
BTW, I'm in much agreement with your quote above if one is talking about an
upward adjustment. But in a negative influence/condition scenario, there are several ways it can be addressed.
To apply your statement to another example, what if one was appraising a 4-story house (no elevators) in a neighborhood where the max was 2-story. The appraiser concludes that having 4-floors to walk up and down would be a negative impact on appeal, and limit the potential buyer pool. There are no other similar homes to analyze and extract an adjustment, and one would have to use another method to determine a reasonable effect/adjustment.
So, in this case, since there is no sales to extract the adjustment from, should one not make an adjustment?