Thanks for the reply strannik, doing OB so I am the builder. So are you saying they can do overhand through the timber wall and then just finish it off from lane way side after that?
With the width of the one and the requirement to leave approx 1500mm it only leaves about 100-150mm to work without lane closure
is the lane a regular throughfare? if not, just wing it. Chances are no one will know while your ethere for a day or two. Otherwise yeah, overhand and then they will periodically go to the lane side to roll the joins befor ethe mortar fully sets. Not a huge deal.