That's clearer, and you don't have much room to play with.
If the parking standards do apply, then you need to check that the sizes are correct and reasonable. ie - according to the sizes, how many spaces do you have now - are there really three or four spaces at the sizes the council they there should be? Which in turn leads to are you actually losing a space in accordance with the council's own definition of what a space is? If you are not actually losing a space of the size the council claim, then an appeal may well find in your favour.
One other thing to check, is if that is a two-bed house, what do the council's guides say about how many spaces it should have? Does that contradict the parking guides?