Presumably though i would need to get approval for the drainage element of a toilet attached. If so would this need just a building notice application?
The definition of a porch is an extension attached to a dwelling in front of any external door.
What you put inside a porch (or even an extension) when built is irrelevant because internal works do not constitute development. And if it isn't development, it doesn't require planning permission.
EDIT: So the answer to your query is that you can put a bog in there without needing planning permission.
A moon crescent of courseClaim that it's an outside loo. Stick one of them old fashioned doors on it with a hole in it.
The definition of a porch is an extension attached to a dwelling in front of any external door.
What you put inside a porch (or even an extension) when built is irrelevant because internal works do not constitute development. And if it isn't development, it doesn't require planning permission.
EDIT: So the answer to your query is that you can put a bog in there without needing planning permission.
From
The Town and Country Planning (General Permitted
Development) (Amendment) (No. 2) (England) Order 2008
Permitted development
D. The erection or construction of a porch outside any external door of a dwellinghouse.
If it is not a porch within the meaning of the act it is not a porch and therefore not a permitted development.
I don't see where this describes it as an extension.
The logic of a Porch with a WC is in my opinion, not a permitted development, but it is interesting to argue at what point can you do something other with the porch, bearing in mind it is outside the external door and therefore is it really inside and available to further develope
Yes please do; I can follow some of the logic but I got me doubtsill let you know what they say!
If it is not a porch within the meaning of the act it is not a porch and therefore not a permitted development.
I don't see where this describes it as an extension.
The logic of a Porch with a WC is in my opinion, not a permitted development, but it is interesting to argue at what point can you do something other with the porch, bearing in mind it is outside the external door and therefore is it really inside and available to further develope
1. the ground floor area (measured externally) would not exceed three square metres.
2. no part would be more than three metres above ground level (height needs to be measured in the same way as for a house extension).
3. no part of the porch would be within two metres of any boundary of the dwellinghouse and the highway.