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the owner of a downtown parking lot has employed a civil engineering consulting

ID: 2797415 • Letter: T

Question

the owner of a downtown parking lot has employed a civil engineering consulting firm to advise him on the economic feasibility of constructing an office building on the site. Betty samuels, a newly hired civil engineer, has been assigned to make the analysis. he has assembled the following data

alternative                  total investment              total net annual revenue
sell parking lot                   0                                 0
keep parking lot 200,000 22,000
build 1 story building        400,000 60,000
build 2 story building        555,000 72,000
build 3 story building         750,000                    100,000
build 4 story building         875,000                    105,000
build 5 story building         1,000,000 120,000

The analysis period is be 15 years. for all alternatives, the property has an estimated resale(salvage) value at the end of 15 years equal to the present total investement.


(a) constuct a choice table for interest rate from 0% to 100%

(b)if the MARRR is 10%, what recommendation should betty make?

(c)discuss the approach

(d)how you determined the solution to this investment decision

(e)what conclusions you reached

(f) write a brief summary of the calculations

Explanation / Answer


Investment

Return/Year

NPV

Salvage Value

Final NPV after discounting Salvage Value at 15th year at 10% discount rate

Keep Parking Lot

200,000

22,000

($32,666.25)

200,000

$15,212.16

1 Story Building

400000

60000

56364.77

400,000

$152,121.59

2 Story Building

555,000

72,000

(7362.27)

555,000

$125,500.32

3 Story Building

750,000

100,000

10607.95

750,000

$190,151.99

4 Story Building

875,000

105,000

76361.65

875,000

$285,829.69

5 Story Building

1,000,000

120,000

(87270.46)

1,000,000

$152,121.59

Based on the above analysis building a 4 story building is most profitable for the owner as it will provide maximum positive NPV. Using 10% MARR as Discount Rate we could see that building a 4 story would be most profitable as it would add $285,829.69 value to the owner.


Investment

Return/Year

NPV

Salvage Value

Final NPV after discounting Salvage Value at 15th year at 10% discount rate

Keep Parking Lot

200,000

22,000

($32,666.25)

200,000

$15,212.16

1 Story Building

400000

60000

56364.77

400,000

$152,121.59

2 Story Building

555,000

72,000

(7362.27)

555,000

$125,500.32

3 Story Building

750,000

100,000

10607.95

750,000

$190,151.99

4 Story Building

875,000

105,000

76361.65

875,000

$285,829.69

5 Story Building

1,000,000

120,000

(87270.46)

1,000,000

$152,121.59