Rejuvenation Project such as the Howard Plaza is perhaps a glimpse into the fate of many buildings in the near future. (fig 1)  As countries develop, new builds seem to pop up everywhere, but once this brown field development starts to saturate and the economic growth stagnates, these buildings need to be revitalised. This is a sustainable solution, in-fact multitude of buildings in London are allowed to be rejuvenated with additional area(FAR) to attract investors. Whilst on the other hand functions are redefined at times when churches have been taken over by nightclubs and a crude example of Detlev Rohwedder House of berlin, the largest building in the world in1936, changed from an aviation ministry (under the Nazi), to houses of ministries (as east Germany) and stands as the finance ministry today. – ConceptSG