Fences...

If your property is registered (i.e. at the Land Registry) with a title number finding out what boundaries are yours is relatively easy. Anyone can log on to HMLR and order office copies and a title plan cost £6. The title plan will usually show "T" marks within the boundary line (usually edged in red). These are your boundaries. Reference to left and right generally means looking at the property from the front. If your property is not registered at HMLR then you need to look at your title deeds and maybe ask the advice of a Solicitor. Voluntary registration of your property at HMLR is not expensive unless the title to the property is complicated. This would also then determine your boundaries and makes life a whole lot easier if ever you should sell. One word of advice, DON'T get into a dispute if you can avoid it, neighbour disputes can be extremely difficult, lengthy and costly. Good luck!

A little bit late in joining this party but will give my view.

Moved house last year into a 44 year old property, open plan at the front and totally fenced at the rear.

The deeds were quite clear and from the original developers. Any fence marked with an inwards facing T was our responsibility which in my case was one fence out of three. As it happened all the neighbours replaced all the fences prior to moving in. Happy days. It should be noted that in the past the property has lost an area of 3 foot x 18 inches at the rear of the garage but this looks to be historical and is nothing to worry about as long as \i have access for any maintenance.