Although many businesses are very keen to promote the energy efficiency and environmentally beneficial aspects of any new office buildings they commission, the waste involved in erecting even a modest structure is an inherent contradiction that is often left ignored. That is not to say that construction firms are deliberately wasteful, after all any inefficient use of raw materials would equal a reduced profit on the project, however it is the responsibility of both the people doing the building and those paying for it to ensure as little ends up in the land fill as possible.
The area which sees the largest amount of waste is often the stripping of the original building that is being refurbished/demolished. If it is a large commercial building then it is important that as much of the furniture and fittings are reused as possible, or at least offered to other firms or anywhere else they may be used. This is easiest with storage and warehousing areas as most industrial shelving can be reused without worrying if it still looks brand new or not. In fact seeing as industrial shelving is normally made entirely of metal or hard to reprocess plastics, recycling the units directly from old home to new is by far the most environmentally sympathetic option, and a bit of chipped paint will bother no one.
As ever, in the commercial world there is a market for nearly anything, especially if it is for a workshop or is otherwise not client-facing, and any money made some things that would otherwise be thrown away can be considered pure profit – never a bad Thing!