any body know any thing about obtaining planning permission if its run and needs returning to its former glory .

Speak to the Conservation Dpt at the Planning Department and be prepared to open your wallets to all-comers.

that bad is it

It's not bad but you will be expected to do things properly without short cuts, and to the design and standards that are required of a custodian of an interesting building.

Speak to them first :)

My parents have a grade 2 listed cottage in Hathersage and it took 18 months to get permission to replace an old bathroom window with an identical one! Not double glazed or pvc just another wooden window!