Raised Patio on Uphill slope

holidayinn

Hi, looking to extend the patio in the rear garden. There is already an existing patio (imprinted concrete) against the house, I just want to extend it further using slabs. 
Problem is the garden slopes uphill away from the house, so if I was to have a downhill slope on the patio to the grass it would mean a large step to the grass.
So seems like there needs to be a step either from existing patio to new or from new to grass.
I want to do it from the existing patio to new, so effectively a raised patio on one side. Pictured, I've laid the slab on a blue basket to give an indication of height required.
I was thinking of using breeze blocks, butt them against the exiting patio and then cementing in giving the height required, then fill the area with more hardcore and whack in. Lay slabs on the top sand/cement mix...does this sound ok? Existing patio slopes slightly towards the house but there is drainage and a soakaway.
It's a one-man job, so trying to keep it simple, thanks! 

FreeBear

Ideally, you want a foundation strip for the "wall". Solid medium or high density concrete blocks would be better. Breeze blocks are soft - Strong enough, but I wouldn't use them.

The rest of your plan is OK. Do try to get the slabs to slope away from the house though. Dig some gravel in to the soil under the grass to improve drainage.

grumbler

It's a relatively small step, blocks will work IMO - if laid perpendicularly to the step.

holidayinn

Thanks both, will take your advice on board and crack on!