Hi, NC'd for this just incase neighbours are on here.
Living on a 13 year old estate. Houses quite close together, road quite narrow. Basically as per diagram, house A is set back from the road. Everyone parks their car in front of their own house or if they have a second car, they park that in their parking space out back. We usually park in our parking space out back and visitors park out front. Never been a problem for years. House A for some ridiculous reason now has 5 cars despite there only being 3 of them. 3 are driven by one person. House A has one designated parking space in front of their house (set back) from the road but parks other 4 cars on the road. He parks two outside house B's house, and because the tunnel to get to their parking spaces out back is quite narrow, and house A parks in front of his house, house B has now taken to parking his car in front of our house, despite having an empty space out back. If he doesn't park in front of ours, someone from house A parks there.
Here's the thing. When someone parks in front of our house, it makes it nearly impossible for us and others out back by us to turn out from our parking space out back and leave the estate turning left. If we or visitors park there, we mount the kerb so the other 4 cars out back where we park can turn out (all have bigger cars than we do). We live somewhere where it's not illegal to park on the kerb and the pavement is quite wide so plenty of room for pushchairs and wheelchairs.
When house A or B park there none of us can turn out so have to leave the estate a different way turning right, which is impossible because there is also a badly parked car blocking the road so no one likes to go that way.
We're having our garden done at the moment and our parking space is full of rubble and stones for a week. We have a 1 year old son and because there is no longer any parking outside or nearby, we're having to lug him down the estate to wherever we've had to park. For some reason it's respected that everyone parks outside their house but both these houses have taken to only parking outside ours. House B is clearly annoyed that house A is always parking outside his house but is a notba chatty person so wouldn't say anything, we've just seen him silently fume.
We get on well with the neighbours and I know it's a road so it doesn't belong to anyone but no one else has a child so it seems ridiculous to me that they have seen us having to carry our son halfway up the road but are still parking outside the house. How can we address this politely?