Cant believe you are blocking off access to the rear garden. I would have left the drive in and built a garage at the bottom. You could have the mini in the garage and a couple on the drive, with plenty of parking for guests.
Looks like its coming on well though.
4th kid on the way.... i have a workshop near my dads house... and i still have 3 spaces on the drive and 2 on the road if i need them ,my brother's house is 3 doors down and i can park on his, and my mum and other brother live 100 yards away in a house i built with 4 parking spaces.....
I think we'll stay here for another 2 years an then move again... should make a tidy sum.