Patent ID: 8799176

Claim:
A system for calculating a relative value of an office building for use in evaluating building lease choices comprising: a. memory storage having software which permits a user to input a building single tenant loss factor, a building multi-tenant loss factor, a landlord's stated rentable square feet for a space in the building, data relating to losses in actual usable space in the building and a rental rate for the building; b. a processor in communication with the memory storage and using the software to: i) calculate an inefficiency factor for the building based on the data relating to losses in actual usable space in the building by; A. calculating an inaccurate measurement loss based on a difference between the landlord's stated rentable square footage for space in the building and a rentable square footage for the space in the building calculated using standards; B. calculating a column loss based upon areas of column encumbering the space in the building if a column is present in the space of the building; C. calculating an unusual building shape loss based on a building side that is not flat if a side of the building is not flat or is at an angle other than approximately 90° with respect to an adjacent wall; D. calculating a window line encumbrance loss based on a perimeter of the space in the building and an encumbrance positioned at the perimeter if an encumbrance is positioned at the perimeter in the space of the building; E. calculating an unusual loss that does not fit into steps A. through D if such an unusual loss is present in the space of the building; F. adding the losses of steps A. through E.; G. dividing the added losses of step F. by the landlord's stated rentable square footage for a space in the building to calculate a net inefficiency; H. calculating the inefficiency factor based on the net inefficiency and the building single-tenant loss factor or the building multi-tenant loss factor; ii) multiply the rental rate by the inefficiency factor to obtain the relative value of the building; c. a display in communication with the memory and the processor, said display presenting to a user the relative value of the building.