Ah ........ I was just wondering if there was enough room for a reduced-width scaffolding, to avoid his drive altogether. I'm afraid not, though.
I'm not a lawyer, but, as a builder, I think the neighbour is just being a prat. I like OG's fag packet idea. Really, that's all that is needed. The guy is simply enjoying his brief period of "power".
Ask the scaffold supplier's "surveyor" to draw a simple, official sketch. Preferably on headed notepaper.
That'll let the neighbour feel important, and settle the thing.