(a) Calculate the weighted unit cost per square foot for the 10 building project
ID: 1711721 • Letter: #
Question
(a) Calculate the weighted unit cost per square foot for the 10 building projects listed on your table below. (b) Estimate the cost of a 25,000-sf project? (c) Use the time and location indices provided in the textbook (pages 70-71) to estimate the cost of a similar building that contains 40,000 sf of floor area. The building is to be constructed 2 years from now in City A. The cost of a similar type of building that contained 30,000 sf area was completed 2 years ago in City B for a cost of $ 1, 950,000.Explanation / Answer
Weighted unit cost per square foot for 10 buildings projects is given below-
General formula = Contract Amount / Size
101 - 1400000/26400 = 53.03
102 - 800000/9800. = 81.63
103. - 2100000/32500 = 64.62
104 - 950000/11300 = 84.07
105 - 1850000/23450. =78.89
106 - 280000/6350. =44.09
107 - 900000/14700. =61.22
108 - 800000/14000. =57.14
109 - 1600000/21000. =76.19
110 - 600000/8000. =75
So Avg cost = (53.03+81.63+64.62+84.07+78.89+44.09+61.22+57.14/76.19+75) /10
= 675.88/10
= 67.588 $/SF
(b). Cost of 25,000 SF project = 25000 x 67.588
= 1689700 $
(c). Time and location indices are not provided.
By given information if we calculate
30000 SF area cost is 1950000
Therefore 1 SF cost = 1950000/30000
= 65 $/SF
So, building in city A cost = 40,000 x 65
= 2,600,000 $
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