I inspected this last week and can confirm that as well as it being signed as for males/females AND disabled (the latter with the wheelchair symbol) the access is completely level - there is nothing to prevent wheeled access (pushchairs or wheelchairs) from accessing the unit. For the record this is a pay-to-pee(!) toilet and the current fee (2025) to unlock it is €0.50.

There is an identical toilet unit in the Northern corner of the "Place du Merch" (which is the free Car park except between 04:00-16:00 on Thursday market days).