The Cost Approach and Functional Obsolescence

  • Peter F. Colwell
  • William N. KinnardJr.
  • Gail Beron
Part of the Research Issues in Real Estate book series (RIRE, volume 9)


The cost approach in appraisal utilizes the concept of functional obsolescence as one of three components of depreciation. The theory of functional obsolescence is developed from notions about how present value and the cost-new vary across different levels of an attribute of a building as well as how the costs to cure functional obsolescence vary with changes in the attribute. The implications for appraisal practice are derived from the theory. A number of formulations of the cost approach are found that look different but are essentially identical. Reproduction cost estimates are discovered to be irrelevant, but replacement cost estimates are not. The theory justifies the use of a traditional replacement cost approach when dealing with functional obsolescence.


Excess Return Cost Approach Replacement Cost Present Value Appraisal Practice 
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  1. Boyce, B., Real Estate Appraisal Terminology, SREA, Cambridge, 1975.Google Scholar
  2. Colwell, RE, Functional Obsolescence and an Extension of Hedonic Theory. Journal of Real Estate Finance and Economics, 1991, 4: 49–58.CrossRefGoogle Scholar
  3. Colwell, P.F. and Trefzger J.W, Allocation, Externalities and Building Value. Journal of Real Estate Finance and Economics, 1993, 7: 53–69.Google Scholar
  4. Colwell, P.F and Ramsland, M., Coping with Technological Change: The Case of Retail. Journal of Real Estate Finance and Economics, 2003, 1: 47–63.CrossRefGoogle Scholar
  5. Derbes, M.J., Jr., Under the Microscope:The Cost Approach, manuscript, circa 1990.Google Scholar
  6. Derbes, M.J., Jr.. Accrued Depreciation Redefined and Reordered. Appraisal Journal, 1998, 66: 131–144.Google Scholar
  7. Laronge, J.A., Solving the Functional Obsolescence Calculation Question. Appraisal Journal, 2000, 69: 327–339.Google Scholar
  8. Stallings, R.L., Functional Obsolescence: Chapter 4, Depreciation Analysis. SREA, 1984, pp. 1–37.Google Scholar

Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Peter F. Colwell
  • William N. KinnardJr.
  • Gail Beron

There are no affiliations available

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