Ah you didn't mention they would be side by side. That does change a lot.
I have a client with a greater slope but still upwards and he will be having 4 steps inside the house and then a small 300-600mm retain via a box planter on the rear of the alfresco
Just remember that to mow the rear...
1m isn't much so you have lots of options.
I would talk to your builder and see what is most economical and I suspect it will be
1. raise front block 300mm at front (around one limestone block) for the garden area and slope the driveway gently up to the garage. Fill from rear block.
2...
