Jacktannery,

Thanks for the reply..... it's a steady slope throughout the length of the garden and is far from an empty field - containing it's fair share of trees and large bushes as well as two streams and a number of outbuildings - I suspect this is not going to be easy ;(

Either way, thanks for the advise. I've already emailed a surveying company to start that ball rolling, fingers crossed it wont cost the earth; else it'll be tap measures and stakes a-plenty...

Looks like I have some researching to do too - so, many thnks for the info above - with luck I'll be able to show you how I got on.