Raising a Lawn up 1-2 feet! I need your help and advice
My first post!
I've got a 1.2 acre lot in Seattle that I'm planning on raising at least 1-2 feet (currently slopes) with soil from an excavation company. Assuming the soil is not 'topsoil' (they told me it has a lot of clay, they are digging it out for four town-homes), how much topsoil should i add on top before I plant grass seed? 4-5 inches? The actual area of lawn is going to be about .3-.4 acres. They told me that I need about 400-600 yards of this fill dirt to bring it up to the level I want, but I'm concerned that it would cost thousands for the topsoil.
How do new construction companies plant lawns? Am I crazy to take this project on?
Thanks for any and all advise!!