I am working with existing health care buildings, and I am trying to reduce operations & use costs throughout Life Cycle Cost (LCC). I already have some hospital benchmarkings and I will use this for the LCC calculation. In this calculation I would use the Life Cycle Cost in Use defined by ISO 15686-5, because the building is already built and I do not have construction cost (1980's). Also I will use the DIN 18690 "User cost of buildings" because it seems accurate for me.
Please, does anyone know a LCC free software to help me with my task?