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Can I lay block paving on top of my concrete driveway?

I have got a solid concrete drive and want to lay block paving. Do I have to dig it all out to 10" to refil with hard core and then wack a plate it or can I just lay sand on the concrete and lay the block paving on top of this?
no there's no garage and the present drive just stops where it meets te street.

Draingae depends on whether your driveway has a slope or not, and if so, which way is it sloping. Alternatively, you could make the new block paving slope from the middle outwards towards the 2 sides, which will also take care of drainage (assuming you've got grass on both sides of the driveway).

Also to consider, where the driveway meets the street, is it level at the moment? If it is and you lay block paving on top of your current driveway, where it meets the street, there will be a slight bump depending on how thick the block you're using. You could just dig up the concrete driveway 2' away from the street and have a slight slope to circumvent this problem though, but aesthetically, it won't be as nice.

Sandwich Wall (with Lightweight Concrete Core).wmv


 

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