hi- based in fulham- i can't really find any reliable informatione explaining if we are allowed to sell takeaway-Where is your restaurant based, my local nando's is on a A3 but they have a line dedicated for people who have called in an order to take it away am based in London.
on an A3 permit you can offer take away with no problems or any restrictions what so ever, A3 governs the fact you should supply certain facilities such as toilet for those customers that will be sitting in the restaurant and it has no restrictions on offering any take away facility.
'i can't really find any reliable information explaining if we are allowed to sell takeaway'-
Surely as I mentioned above that would your Council. They issue the licenses and will tell you what they permit in the particular area in which you are located.
I am not an expert in restaurants but have some experiences with licenses. I understood that not all A3 licenses included takeaways and not all areas are the same, as the Council may have zones where they restrict business use.