Building Code
Indiana Building Code (675 IAC 13) based on the 2012 IBC with amendments
Indiana · Licensed Professional Engineering
Energy compliance handled as engineering, not paperwork — documentation matched to the exact code edition your permitting jurisdiction enforces.
Indiana's commercial energy code is state-adopted but older than most of the country, referencing an ASHRAE 90.1 / IECC vintage from around 2007–2010 with amendments. That gives us a uniform statewide compliance baseline, which we document through COMcheck or energy modeling, but the dated minimum means real savings come from designing above it. In climate zone 5A, envelope performance — continuous insulation, air-barrier continuity, and infiltration control — is the highest-value lever, followed by efficient heating plants and lighting controls. For the warehouse and manufacturing buildings central to Indiana's economy, high-bay lighting controls and efficient process heating drive the biggest operating-cost reductions. We also identify utility incentive programs that reward exceeding code, which helps justify above-minimum design on heating-dominated Indiana projects.
Code adoptions change on multi-year cycles and many states allow local amendments. The researched source verification date is 2026-07-28; we verify the governing edition with your permitting jurisdiction at project kickoff.
Indiana operates a statewide Plan Review through the Department of Homeland Security for many commercial projects, issuing a Construction Design Release before local permits proceed. Local building departments then handle inspections; Indianapolis and other larger cities run their own commercial review, so both the state release and local permitting must be sequenced.
Indiana grants licensure by endorsement/comity for NCEES-record engineers; electronic seals and digital signatures are accepted for plan submittals under board rules.
Indiana's central location makes it a national logistics and warehouse hub, with heavy distribution and e-commerce fulfillment construction around Indianapolis and along the interstate corridors. Advanced manufacturing, EV-supply-chain investment, life sciences, and pharmaceutical facilities add strong industrial demand statewide.
Key markets: Indianapolis, Fort Wayne, Evansville, South Bend, Carmel, Bloomington.
For projects whose jurisdiction, discipline, and scope pass review, an available licensed PE and coordinated team can be identified. Send us your scope for a proposal; timing and fee depend on the project.
Request a Proposal