Sound City Festival moving from Bramley Moore Dock to Clarence Dock next year.
It had been held at Bramley Moore Dock for the last 9 years.
http://www.getintothis.co.uk/2016/1...017-move-clarence-dock-10th-birthday-edition/
Quite clearly, something is going on with the BMD site.
9 years? Not sure where you got that from. It has been at Bramley Moore Dock for the last two.
However, it is unusual for the change in location. They had a few issues with the venue the first year, in terms of stage positions, overcrowding and sound clashing. However, last year (minus a powerout) seemed on the whole a lot better. Unless there were some serious issues with the site, I would say it is an usual step to move to again just as they seem to be ironing things out.
I also don't think they sold out the last years, so it wouldn't be a capacity thing.