Posted: 31/01/2015 at 20:12
Are you sure that you can't remove this tree if that's what you want to do? My understanding of the law is that in a Conservation Area, permission is required for the felling, pruning or lopping of any tree (including fruit trees) with a trunk greater than 7.5cm in diameter, that measurement to be taken at a height of 1.5m above ground level.
Is the fig tree that big?
However, I love fig trees and I'm sure you can rejuvenate yours if that's what you want to do.
I would pick out half a dozen branches that could by stretching your imagination be seen to form a fan shape, and remove the rest - but don't remove them all this winter - do half this winter and half next.
You'll find a clearer explanation here https://www.rhs.org.uk/advice/profile?PID=106
scroll down to Renovation Pruning.
Also have a look and see if the roots are constricted - hopefully they are as this encourages the tree to produce fruit.
Alan 4711 is a forum member who is really into figs, and takes loads of cuttings - hopefully he'll see this post and tell you how to do that