At first glance, this news article, flagging a planning permission notice looks interesting. Upon digging deeper, it just becomes confusing.
The planning permission notice is No. 2450084 in Donegal Co. Council. What is being sought is, in fact, retention permission – i.e., the work is already done.
The permission notice suggests that the land on either side of the original railway line has been lowered, bringing the line’s route back to being on an embankment and the land owner is seeking permission to retain this arrangement.