GMP contract

Developer and GC reviewing a GMP contract for ground-up multifamily construction

GMP vs. Lump Sum vs. Cost-Plus: Which Multifamily Contract Is Right for Your Project?

The contract type you choose for ground-up multifamily construction determines who carries cost risk, how your budget locks in, and what happens when material costs change. Inabnet, a multifamily general contractor in San Diego, Tampa, and Austin, breaks down GMP, lump sum, and cost-plus contracts — what each one means for your proforma and your relationship with your GC.