The Cockpit was or maybe still is owned by Margaret Williams and her family. It was used by Margarets father who was an undertaker as a chapel of rest, then a storage space for coffins apparently. Margatrets father "Bobby Box" as he was known sold the business to Lambert and Son years ago and as far as I know the Cockpit remained in Margarets possesion. I know that she owns the access to it.
This was on the Georgian Group website inc the photo.
Grade II* eighteenth century cylindrical cockpit, later converted to a chapel of rest and now redundant. Original slate conical roof and later sash windows.
Grant offered: £1000 towards emergency protection for the roof, including marking and storing surviving roof timbers and slates and erecting a temporary corrugated steel sloping roof, pending permanent repairs.