No, not all. Lak FES is a sustainer and needs no licence but gliding qualification/approval in the UK (pre EASA, and within the BGA), or even no qualification at all (outside the BGA), or a sailplane pilots licence (Post EASA). We are in a transition period until April 2015, when the latter will apply.
One Lak FES ( effectively a prototype for the modification) was developed to have self launching capability, but
AFAIK one cannot buy one. If one could, it would be like other self-launching sailplanes (not TMG) and would need a licence. An ordinary PPL will not do – these are too different from normal GA types or TMG’s. I am not expert enough to say what will happen post EASA/April 2015t, but I expect somebody will explain.
Chris N