Is change permanent? I find this an interesting question. When we say things are impermanent, we often say that it is because they constantly undergo change. But in that, do we make the assumption that change will always be around and therefore that it's permanent? Could there be a place where change never occurs? Has this kind of question been pondered in Buddhist texts at all? The possibility of change never occurring?
Change is permanent.  

The Laws of Nature (Dhamma) are permanent. 

The unchanging Nibbana (Nirvana) is also permanent. 

Buddhism explains only conditioned things (sankhara) are impermanent; thus conditioned impermanent things are permanently impermanent. 

The Dhamma (Natural Truth) is permanent (but not-self).

This is standard Buddhism, as follows:


  
  "All conditioned (sankhara) things are impermanent".
  "All conditioned things (sankhara) are unsatisfactory".
  "All things (dhamma) are not-self".
  
  
  Dhammapada