whether something is an investment or not is not a subjective opinion, but an objective fact.
If it takes effort, capital and time/labour to create, it's an investment, because such resources have alternative uses.
Just because this cost have been paid as a lump sum in the past (for constructing a building and/or buying the land etc), doesn't mean that cost is now sunk and is "lost" - it is, and must be, recouped in the future, otherwise the initial cost will not make sense to have been spent, and said investment would not be made and the world would now have one less of it.