PropertyEconomics
Elite Member
- Joined
- Jun 19, 2007
- Professional Status
- Certified General Appraiser
- State
- New Mexico
How about this from the Assessor's Handbook:
RELATION BETWEEN COST AND VALUE
The rationale for the use of the cost approach is based upon the economic principle of
substitution. As discussed in Chapter 4, this principle holds that a rational person will pay no
more for a property than the cost of acquiring a satisfactory substitute, assuming no costly delay.
The condition of no costly delay must be satisfied, or the cost of the delay must be added to the
cost of a substitute property. If a property owner would not, or economically should not,
construct a replacement for the existing property if it were destroyed, then a value indicator from
the cost approach has little relationship to market value. This occurs when reconstruction would
not be economically feasible.
The red above is a very good indication of the need for inclusion of external obsolescence in the cost approach. It seems your little assessor book recognizes economic conditions as being a factor in the cost approach ... very well done grasshopper ... it even goes on to say it occurs when reconstruction would not be economically feasible ... also known as financially feasible which is one of the tests of highest and best use.
I believe your posting very well supports the theory for completing an accurate cost approach including all forms of depreciation .....

