When people first saw the tower going up, they thought a jam factory was being built here. Not so silly though, when you know that the Chivers’ factory was where Archway Tower is now. Others saw it as a useless appendage.
In fact it has a very real and important purpose. As the architect started to run out of space in the building, so he stored all the essential electrical equipment in here. Or maybe he was making a statement similar to the architects in medieval Italy.