This fourth of a five-article series discusses the application of the unit valuation principle. This installment summarizes the generally accepted unit valuation procedures. But first, this discussion describes the generally accepted summation valuation approaches and methods as a comparison to the unit valuation approaches and methods. Read Part I here. Read Part II here. Read Part III here. Introduction This is the fourth installment of a five-part series regarding the development of unit principle valuations for property tax compliance, administration, and controversy purposes. Previous installments described when and why to develop a unit principle valuation—instead of a summation principle valuation—particularly for…