Laying new turf lawn on solid builders clay

Hi

We have just completed a new build house and want to lay turf back and front However, the ground is solid clay and full of rubble. 

We intend to remove as much rubble as possible then, we thought, if we levelled out the clay with fine stones such as pea gravel of some other drainage material we could then put down some top soil then lay the turf 

Is this a sensible plan? will the turf take okay on top of this or are we being too simplistic ?

Just trying to avoid the back breaking work of dealing with breaking up the clay J

thanks

marion