Hi All, I'm relatively inexperienced when it comes to gardening and really struggle with my existing front lawn which,I suspect, is due to heavy water retaining top soil and heavy clay subsoil. This time I'm determined to create the perfect conditions for my large rear 3/4 acre plot for a nice lawn for my two young kids to kick a ball about in and somewhere myself and wife can relax and entertain in. The plot was very low and poor when we built our house but we were very fortunate to be offered plenty of subsoil from a local farmer digging out for a new farm shed for free. He provided the dump trucks and I provided the 'dozer to level it out. There was a very light layer of top soil spread over the closest part of the ground to the house. This was full of humps and bumps and seemed to be water logged; for several years I let it grow wild due to concentrating on finishing the house. At the end of 2015 I levelled it out and sowed some wheat grass due to it being too late in the season for grass. Unfortunately the crows got all the seed so a light layer of grass seed was sown in the hope it would combine the soil. Last year I didn't do any more work to the plot except cut it from time to time. The grass is very coarse and patchy, the soil appears to be compacted and doesn't drain even though there is a drainage ditch on 3 sides. The ground is hard underfoot even where there is standing water. I believe there is no top soil at the rear just subsoil. The soil is also incredibly stony. This year I hope to resow around July/ august which seems to be the best time to sow locally for a high rate of seed germination. Now to my question, what do I need to do to create a nice flat lawn where the grass grows green and healthy and the soil feels nice underfoot?