Posted: 10/04/2015 at 12:21
Hi GG, dont be too put off by that, people come and go for different reasons and many dont realize what hard work clearing a plot can be. As Zoomer says, you could have hidden raised beds or paths, hence the unevenness in the ground levels. Mine was like that, but once you start digging and clearing you will probably find some sort of layout. Hard to tell till its all strimmed and stripped back.
Have you asked if you could have it rent free for a bit and have a go at clearing it ?
What sort of soil have you got in your area?
Do the other plots look productive, if so then you should be ok, or do raised beds. Good luck with your decision either way