upper level

Q: If someone, as part of umrah, performs tawaf in the top level mataf (which is made for people with wheelchairs), will the tawaf be valid even if he is healthy and able to perform tawaf on the ground floor? I am asking since a family member is wheelchair bound, and it is easiest if the whole family sticks together and perform umrah together with him rather than splitting up, which would mean that everyone would perform tawaf on the top floor.