Thanks again. It's useful to know it doesn't need to be a fire door and there isn't a step issue.
I don't want to pay a council bod £100 but i do want to do things by the book unfortunately. It will need a concrete lintel (two in fact as it's a cavity wall).
Thanks again, that has been...
I just don't want to run into trouble when/if i come to sell. The previous owners here had done various alterations and didn't get regs sign off and i made them get it done before i'd buy and i don't want to be in that situation myself. I just like to do things by the book.
Thanks
See my poor diagram.
My house (black box) has a porch (yellow box), and the internal garage (green box) has a door to it from the porch.
I'd like a door from inside the garage to a lean to shed (orange box) on the outside so I could easily access the shed and the garden from the garage...