This is a lot simpler than returning block and laying a bunck of additional 4". It looks like you already have 12" offset corners, so it's easy. You'll either need to saw or chisel 4" off the second course, or 4" off of the first course, and alternate the corner (flip it). It really depends on what you have room for on the footings now.
Also, I wouldn't grout every 12 block full, probably more like every 48", and extend the rebar all the way to the top of the wall. I would use 12" solid tops/caps on the rest of the wall vs. filling them with concrete.
Also, I wouldn't grout every 12 block full, probably more like every 48", and extend the rebar all the way to the top of the wall. I would use 12" solid tops/caps on the rest of the wall vs. filling them with concrete.
