Having read through all the above, I agree with @TaxGuyBill -- that as long this is not a scheme to reduce tax bite, there is nothing illegal about employing a known entity ( your company with known work-crew) to build your home. Contractors do this all the time, use their own/trusted crew to build for them. I would suggest however, that you keep good records and be very careful to keep your personal and company funds/ decisions clearly separate. Good Luck on your new home.
