Back in the eighties my parents garden was tiered using rubble from their house renovation and topped off with a foot or two of top soil.
There's now an incredibly lush and vibrant garden so it doesn't seem to have done any harm.
When I was a teen I built a pond in the garden and even though the rubble had been buried under soil for over two decades there were still voids and cavities in the rubble so it might be prudent to compact the layers as you go to maximise how much you can dispose of.
Sturmghiest t1_j6eiwvf wrote
Reply to Disposing of old bricks and mortar. by NoBoDySHeRo3000
Back in the eighties my parents garden was tiered using rubble from their house renovation and topped off with a foot or two of top soil.
There's now an incredibly lush and vibrant garden so it doesn't seem to have done any harm.
When I was a teen I built a pond in the garden and even though the rubble had been buried under soil for over two decades there were still voids and cavities in the rubble so it might be prudent to compact the layers as you go to maximise how much you can dispose of.