Vertical Expansion Option

A real option which allows the owner of a development project to build and complete the project to a certain height with an option to increase the height of the building at some future point. The cost of a project when building with this option is estimated to add a 5-10% premium on standard construction costs due to implementing building systems and components that may be excessive for the current building size. However, this expense may be offset by the risk reduction benefits associated with the increased development timing flexibility and potential cost savings in the future phase of development for having built a majority of the building in a previous period.

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