Should EU laws on the environment be disregarded by the British judiciary before the UK has left the EU?

In a follow-up to yesterday’s story Wirral Council’s Cabinet agree 150 year lease for fire station in Saughall Massie I am going to write an editorial on a related matter. I’ll start by pointing out that I was the Appellant in the First-tier Tribunal matter referred to and Applicant in the related Upper Tribunal case.
Below is an opinion piece, I am not a legal professional and one of the costs decision referred to is sub judice. However as Editor I have decided there is a public interest in these matters being written about for various reasons.