The window for the kitchen had been completely burnt out but as it is on the canal side of the building you wouldn't have seen it from the road Katex.
Deffo arson as there was a pile of papers screwed up in the kitchen that were set on fire and the lock to access the upstairs had been jemmied/broken off.
The link below is to the LET article in todays paper:
Arson fear over blaze at Clayton-le-Moors club (From Lancashire Telegraph)