Well I have spoken to the neighbours in my adjoining flats and they had no problem with me putting a cat flap in the downstairs security door if I decide to get a kitten. I wont need to do this for a few months from getting a kitten. It may be two as the pet rescue centre's sponsors like the kittens to go in pairs from the same litter so I may end up with double trouble
I don't know what they do if a cat has a litter of 3 or 5 kittens though??? Will have to investigate a bit further.
So I have the option and will probably side on letting he, she, them outdoors when old enough.
Thanks for all the replies, it has really been helpful.
Jason