Hi, I'm building a single skin brick garage in my garden, I've dug the trenches for the footings only 500mm deep as I didn't need building regs due to the fact it's only gonna be 28 sq/metres, now, if I'd of followed the councils guidelines/ building regs of 800mm it would of been alot more work. Is 500mm deep enough for a single skin wall, it's quite chalky soil with a bit of clay.
Cheers for any advice
Andy