4 ms·I could easily build a 250 sqft home for $10,000 excluding the foundation.by leakybit 10y agoI could easily build a 250 sqft home for $10,000 excluding the foundation.tabeth 10y ago1. Why exclude the foundation from the cost? It's necessary, no? 2. Can they be mass produced? You should start a business if so.q3r3qr3q 10y ago1. I think not for something like a pole barn. And maybe someone else usually does that part.