Thats what I was thinking generally, thanks. I'm thinking of trying to strengthen the slabs I build on with mortar ... it may not have the desired effect over time, but as you say, its a lot of time effort and cost to put in fottings
I'm starting garden renovations and want to build a one breeze block high ornamental wall which will eventually have fascia tiles on it. Currently there are thick concrete paving slabs on the ground. Would it be prudent to build this one block high wall on those slabs? Behind them the space...