Narrow plot due to south access path to the back?

Then treat yourself to a wider carport. Freestanding, 2.50m might be acceptable, but with the house wall on the left and the enclosure on the right, you will always struggle.

It is not just one rear neighbor but will be six, so your fear will not come true. Besides, there is no alternative unless you look for another plot. And one inconsiderate neighbor is enough to be a nuisance, even without access road; this can rarely be permanently ruled out.

since I access via the driveway

Do you really want to put yourself through that? Then you are involved with six co-owners in the construction and maintenance of the path. From experience, this is a constant source of discord.