We are in Ontario. Canada. Just north of Toronto. We are hoping to build an ICF house this year doing some of the work our selves. What should I expect to pay per foot to have the foundation dug, and what should I expect to pay per foot for the subfloor and supplies that will go between the basement and main floor? I already know how roughly how much the ICF will cost.

There are so many variables like the soil type, how level the ground is, the floorplan, your longest span, ect that I don't think we will be able to give you a good estimate. If you gave us some more general info about the lot and plan we might be able to help you a bit more, but if I were you I would call a couple local contractors and get a bid.

We haven't got our plans yet so I can't get a bid from contractors. I'm just trying to estimate what it should take us to get to the first draw stage at the bank. The ground is fairly level. Its 3 acres so the soil doesn't need to be removed from the property. We have our own bob cat so we can do the level of the access soil ourselves after. Longest span is about 90 feet. Thats including the garage. The house is 32 by 90 including the garage. The house is about 2300 square feet. It has 8 corners. Basically a rectangle with a rectangle cut out.

Whoever is drafting your plans should help you get "in the ballpark". But doing some of the work yourselves, it matters greatly how much. We just don't have enough info. Span would be the unsupported lengths of trusses.

My advise is hire a local contractor(s) to get the shell up, talk to them at length narrow it down to three. Get a detailed bids then contract, so you know exactly what to expect and do just the miscellaneous work and some finish work yourself, there will be plenty of work for you.