Architects would do well to adopt Facebook's motto: Nothing is ever finished. A general contractor can occasionally feel finished, but service calls can persist for the lifetime of a building. Replacement planning should start at the schematic design stage. An effective method in large building planning is to divide the structure into self-sufficient zones that can be isolated for renovation. Having an elevator with a depth equal to ceiling height is a good idea. And, for life safety it is wise to have redundant egress systems. These functional aspects pale in comparison to the attitude adopted by the client. If a renovation target is established for 10 years after initial opening then it will have a profound effect on finish selection. Durability will be weighed against ease of replacement and lifecycle costs will be tempered by the expectation that better products will be available sooner than expected.