Why? would you ask... courthouses and townhalls already reduce local autonomy, which in turn gives reform progress!
- make reform progress also dependent on buildings (courthouse, townhall)
- if 100% of my nation's development is covered with courthouses, this will give +0.5 monthly reform progress,
- if 100% of my nation's development is covered with townhalls, this will give +1 monthly reform progress
That's a good idea and a very good point I'll think about it