Scenario planning lets people consider the greatly different requirements that a building may have to face. A building is a huge investment, a black tarry pit of sunk costs, a trap, and a prison. The job of scenario planning is to question whether a building is really needed at all and, if it is, to convert it from a potential prison into a flexible tool. Scenario building suggests oversize structure and services, separation of high and low volatility areas, and different designs. Medium-sized rooms accommodate the widest range of uses.
Storage room is always in demand and can become something else easily.
Some areas of a building may be highly finished and flashy, others unfinished but useable. The finished areas suggest what is envisioned. The unfinished areas can be finished as experience and conditions suggest is appropriate. The other approach is to consider those elements which have in the past led to buildings that can change. An important factor is allocation of resources.