Neighbours parking dispute

Ditzy_Mitzy

One of two things could apply here: either the 'shared driveway' is, in fact, public highway and you can park on it as long as you comply with whatever restrictions are put in place by the LA; or the shared driveway is not adopted highway, in which case you are supposed to abide by whatever covenants are in force.  
The neighbour has no say in what you do, however is within his right to report a breach of covenant to the landowner if there is one.  He is then reliant on the landowner to take action.  The landowner might not care.  
It looks like an example of bad design to me, or certainly design which is bound to cause this very problem.  The segment of shared driveway highlighted is a 'road to nowhere' in real terms as it doesn't lead to anything but your parking space.  It would make more sense to convert the shared bit in front to additional parking spaces, giving two per house in a tandem arrangement rather than the one and twenty feet of no man's land currently in existence.  Perhaps it's to stop too many cars parking in that area, and perhaps that's what your neighbour is worried about. 
You mentioned having another car in the garage: it's possible that your neighbour believes you may commence parking this on the space and adopt the bit of shared driveway as an additional space, to free up the garage for a third car.  Just speculating, of course. 
Perhaps you could turn the negative, in the neighbour's eyes, into a positive.  Explain that you aren't getting another car and point out that parking the cars in a staggered arrangement benefits him too: he can now open his door fully, as you can, because you aren't parked next to him.  
You might even come to some sort of gentlemen's agreement regarding parking more cars in there, if either of you ever wanted to get another one.  Assuming that the residents of the house backing on to the road don't mind, you'll each get a free parking space!  

finchman

If a car parked next to you how would the 2 spaces in bottom of picture turn round I think this is what your neighbour is getting at

If you live long enough you will get old 

Hasbeen

finchman said:

If a car parked next to you how would the 2 spaces in bottom of picture turn round I think this is what your neighbour is getting at

If you live long enough you will get old 

Yes: looking at OPs plan. Then both C properties if reversing would rely on doing so into the access to both B houses parking areas.
But would then have assumed that it would be C that would be "complaining"?
Perhaps they reverse in to their spaces/garages and drive out?

Perhaps if they do and OP has a nice word and they do not object then OP can tell B that they have no problems. B outnumbered?

warby68

Just from another angle, is your space really so narrow that you can't get out even if you park it as tight to the other side as you can? If not parking centrally works, one of you could reverse in and maximise the gap in the middle which both drivers sides could use. That's the only compromise I can see that might work with a bit of goodwill,
I think your plan to get an extra space for your family isn't going to work out, not without a lot of aggravation. If you do it, others might do as well in the other 'corners' and it gets tighter and tighter for turning and more arguments about the extra bits that supposedly don't block anyone in. Its often the case that people think its only me and only a little bit of rule bending but then others don't like it especially if there is no opportunity for them to do the same. Once started, parking wars never seem to end.
If the main estate road allows for parking, that might be your short term solution if you really can't get out but longer term you probably need a rethink.

nosferatu1001

It could also be shared driveway because the LA does not allow more than X parking spaces per household of Y size.