Newdaddie both you, and your solicitor, are complete arses.
Watt Your diagrams are top-notch. Have a 
If it were me, I wouldn't hide from the neighbours if they come round, they may be genuinely hard of understanding, but I would have a script ready along the lines of "My deeds/plans clearly state that the garden is my private property and that you have no right to access it, and your builders have made a complete mess of my garden which I am very unhappy about, and will expect you or them to remedy. The council planning chap/ess is coming tomorrow and we'll see what they have to say. In the meantime, you should know that if you enter my garden I will have no option but to call the police and report an intruder. Now if you'll excuse me, I have a delicious home-made steak pie in the oven."