How much to level out a small garden?

[HJB2021]

We have a small garden which is on a slope, I would love to get it levelled out, it’s all grass with some slabs at the side. I have no idea how much something like this cost 🙈

thanks

small could mean 3m x 5m or it could mean 10m x 30m - cost will be very different.

do you need to add earth or remove earth? do you need to build retaining walls?

is there easy access for machines at the back or does earth need to be carried through the house?

all these things make a big difference to the price.