CAN I BORROW ON RAW LAND to build a building ???

im working on a deal that is a seller financing deal on the dirt contract for deed 3% interest rate !! will a bank lend on cost to build a commercial building only seller financing rate is great will a bank lend on just building and don't have to include the dirt in the financing since seller rate is great i don't want to add in financing at bank which gonna be higher i assume so like to keep seller financing on the dirt and bank financing on the physical new construction building is that possible ???