Boundary wall distance (Scotland)

[Glasman]

Hi wondering if anyone can advise, I’m building a small boundary wall between my drive and my neighbours drive. My drive is where the dig out is, should I be leaving a gap between my wall and the edging kerb at the tar. Or should I be good to build up against the edging kerb? Wall is only going to be around 400mm high.

Edited January 16 by Glasman

[ProDave]

Where is the boundary?  I would have thought the middle of the grass strip?

 

If so build it you the wall is just your side of the middle.  Or with agreement from the neighbour buils it exactly in the middle as a party wall.