Hi
I am currently working in the garden and have cleaned it through which has basically wiped out a lot of the grass.

The soil seems to be clay, in as much as when it rains it becomes a bit swampy and when its not seems very dry and does crack.

I do have parts where the original grass is still growing but not a lot.

It is about 80 feet long by about 14 to 15 feet wide

I would love to turf it but what do I need to do?

I have read a lot of things that say use sharp sand then others they say do not.

Other places that say lay 6" of topsoil onto the surface which to be honest would not work considering that would take the garden up to the top of the gravel boards on the fence and above next doors gardens and of course cost a fortune!.

Any help would be appreciated.

I am in London, UK

Thanks in advance