I am close the point where the architectural technician assigned to creating my building control diagrams will ask me to confirm the thermal layer build up for my brick & block walls.   My options based on my own research seem to be:   150mm cavity plus basic dot & dab dry lining or classic wet plaster on blocks. 100mm cavity with exotic thermally performant blocks for the inner wall plus dry lining. 100mm cavity plus commodity blocks plus 25mm insulati