cost-depreciation approach
-used to estimate the current cost of reproducing or replacing a building, minus an estimate for depreciation, plus the value of the land
replacement cost
-the estimated cost at current prices to construct a comparable building with equal utility to the subject building by using modern materials, design, an features
-some construction methods and materials may no longer be available, therefore, substitution may be necessary
reproduction cost
-the estimated cost to construct at current prices an exact duplicate or replica of the building that is being appraised by using the same materials, design, and layout as the subject property
step 1: estimate the value of the site as if vacant
-the estimated value of the land must be determined as if it were vacant since land does not depreciate
step 2: estimate the cost to replace or reproduce
-estimate the cost to replace or reproduce the main improvement by using one of the following three methods
-quantity survey method
-unit in place method
-unit of comparison method
quantity survey method
-a detailed inventory and precise cost for each item required to construct the main improvement is compiled int he quantity survey method
unit in place method
-the cost of each component of the property is estimated by using nationally published cost manuals
-shortcut for the quantity survey method
unit of comparison method
-a cost per square foot or per cubic foot of an entire building
-the figure is multiplied by the number of square feet or cubic feet in a subject building to estimate the cost of the subject
-a recently constructed building of a known cost per square foot or per cubic foot which is called a benchmark building can be used as a unit of comparison
step 3: estimate the accrued depreciation in the main improvement
-three categories of depreciation:
-physical deterioration
-functional obsolescence
-external obsolescence
accrued depreciation
-the total loss in the value the improvement may have incurred over its lifetime, measured against the cost of new
physical deterioration
-any loss in value due to normal wear and tear from use, negligence, or aging of the building
-physical deterioration can be either curable or incurable
-whether something is curable or incurable is based on economic feasibility
functional obsolescence
-can be caused by either a deficiency or an over-improvement
-functional obsolescence due to a deficiency is a loss in value due to the failure of a property to meet current consumer preferences due to changes in building design or standards
-an over-improvement is an investment made to a property that does not make the best use of the property or is excessive in comparison with the improvement of similar properties
external obsolescence
-a loss in value caused by factors beyond the boundaries of the subject property
-considered to be incurable on the part of the owner since the problem is beyond the property’s boundaries
economic age-life method
-the appraiser estimates the total economic life of a building, which is the number of years it will contribute value above the value of the land
-the appraiser then estimates the percentage of the total life lost or used up by depreciation
effective age
-the age a property appears to be, due to extensive updates, or excessive wear and tear
actual age
-the true age of the property
step 4: calculate the depreciated cost
-subtract the accrued depreciation from the reproduction cost of the main improvement to derive its depreciated cost
step 5: estimate depreciated site improvements
-estimate the cost to construct any site improvements, such as driveways, landscaping, fences, and so on, and subtract any depreciation in these items
step 6: add the vacant site value
-add the vacant site value, the depreciated cost of the main improvement, and the depreciated site improvements