I just took my allotment on in October, it's a private site Lisglass (on the Larne Line by Bruslee Recycling Centre, Newtownabbey). I haven't been able to get much done yet, but I guess it's all in the preparation. With the ground being frozen thanks to the lovely snow, I'm planning my year and getting ready to order my seeds etc.
Come the there will be a lot of digging to do. :-[ but hey you take on an allotment you take on the work, eh?
Jo.