Posted: 03/06/2014 at 10:47
Ree, two questions, 1) how much off level is it, 2) why not make use of the differing levels to make an interesting garden?
Do you really need a flat playing field or could you by dint of terracing make it feasible on several levels with sleepers. wooden edging. brick or flag edging or even a flat area, slight slope then flat area. The possibilities are endless and much more cost efficient than trying to level off the whole space what ever size it turns out to be, it would be a good idea to measure it and make a plan.
Methinks you need sit down and think about what you really want, it could turn into a series of garden rooms with differing interests in each on various levels. It will not be easy what ever you do it will not be cheap unless you have a big family of lusty labourers who work for biscuits and tea but it could be fun. At least get the size and difference in level of the garden.