So, if you were parked outside the church, can you legally do a u-turn to go up the hill??
Actually, I think you can unless there is a separate block on a U-turn at this point. This is equivalent to asking whether the ambulances can only leave the depot by turning right. I do not think this is the case, it is a 2 way street at this point. https://www.google.co.uk/maps/@51.441129...312!8i6656