For good/bad (delete as appropriate) Penistone is now a fully developed Tesco Town. As part of the development though the whole market area is being re-done and this includes the building of a new market hall.
Now when I heard this I assumed it would be some cheep stone/brick affair what I didn't expect was a traditional oak beamed crook barn! Unfortunately due to the safety fence I couldn't get really good photos of the development but if you are interested the company building the hall, Carpenter Oak Ltd, have a really good page showing how the work is progressing.
Once the building is finished, around the end of October, I'll go have a proper look around.