Indiana Building Permit Timelines & Delays
Indiana runs a two-track building-permit system. For Class 1 structures (public, commercial, industrial, and multifamily buildings) the state adds a review layer on top of local permitting: a Construction Design Release must be obtained from the Indiana Department of Homeland Security (IDHS), Division of Fire and Building Safety, before a local building permit can issue (IC 22-15-3.2; 675 IAC 12-6). For Class 2 structures (one- and two-family dwellings and townhouses) there is no state design release; they're defined out of the Class 1 category (IC 22-12-1-5) and handled entirely by local building departments.
Indiana permitting, the figures
The key published figures for this jurisdiction — each cited to its official source.
What the data shows
Indiana adds a state plan-review layer for commercial work: all Class 1 structures (public, commercial, industrial, multifamily) must obtain a Construction Design Release from IDHS before a local building permit can issue (IC 22-15-3.2; 675 IAC 12-6).
One- and two-family homes skip that layer: a 'Class 2 structure' is a townhouse or a building with only one or two dwelling units, and the Class 1 design-release regime doesn't reach it, so homes go straight to local review (IC 22-12-1-5).
The state release carries an enforceable clock: on a complete application IDHS must act within 10 business days, and within 20 business days if the project is selected for detailed plan review, with 10-business-day correction cycles (IC 22-15-3.2-8 / -9 / -10).
Where localities post measured turnaround, it's quick at first review: Indianapolis's Department of Business and Neighborhood Services posted (as of May 2025) 9 business days for new homes, 3 for remodels, and same-day first review for commercial: first-review times that exclude applicant correction time (Indianapolis BNS, 2025).
The practical drag is sequencing and overlap: commercial projects in Marion County clear both the state Design Release and Indianapolis BNS (building, zoning, and combined-sewer drainage review), and the state authorized about 26,633 units in 2024, trailing Ohio (U.S. Census, 2024).
Most delay accumulates before technical review
The data points to the same lever everywhere: most delay accumulates before technical review, in completeness and resubmittal cycles. Permittable's Permit Review Diagnostic checks your plans against applicable codes and common reviewer issues before you submit — so your package is more likely to clear on the first pass.
Indiana permitting: FAQ
What is Indiana's Construction Design Release?
It's a state-level plan-review approval. For Class 1 structures (commercial, industrial, multifamily, and public-use buildings) the Indiana Department of Homeland Security must issue a Construction Design Release before a local building department can issue a permit (IC 22-15-3.2; 675 IAC 12-6). It's an extra layer on top of local permitting, unique among these states, and it applies to the design/plans rather than the field inspection.
Do houses need a state design release in Indiana?
No. One- and two-family dwellings and townhouses are 'Class 2 structures' (IC 22-12-1-5), and the state design-release requirement applies only to Class 1 structures. So homes are handled entirely by the local building department: there's no IDHS plan-review step in the way there is for commercial and multifamily work.
How fast does Indiana's state plan review move?
There's a statutory clock. On a complete Class 1 application, IDHS must act within 10 business days: issuing the Design Release, notifying you the application is incomplete, or selecting the project for detailed plan review. If it's selected, the release or correction request comes within 20 business days, and correction cycles run 10 business days each (IC 22-15-3.2-8 / -9 / -10). Uploading new documents restarts the 10-day clock.
How long do permits take in Indianapolis?
Indianapolis's Department of Business and Neighborhood Services posted (as of May 2025) first-review times of 9 business days for new homes, 3 business days for remodels and additions, and same-day first review for commercial new construction and remodels (Indianapolis BNS). Those are first-review turnarounds that exclude applicant correction time, and commercial projects must also clear the separate state Design Release before a permit issues.
Sources
All figures on this page are drawn from Indiana Building Code, the state Construction Design Release & its 10/20-day clock — Indiana Dept. of Homeland Security / Fire Prevention & Building Safety Commission. Indiana runs a two-track system: Class 1 structures (commercial, industrial, multifamily, public) need a state Construction Design Release from IDHS before a local permit can issue (IC 22-15-3.2; 675 IAC 12-6), while Class 2 (1–2 family dwellings) are exempt and handled locally (IC 22-12-1-5). The design-release statute carries a real shot clock: IDHS must act within 10 business days, or 20 if a project is selected for plan review. www.in.gov/dhs/building-plan-review/building-plan-review-process/. Specific tables, reports, and pages are cited inline with each figure above.
Indiana's 10- and 20-business-day figures are statutory targets for the IDHS Design Release (IC 22-15-3.2), not a published measured average: IDHS doesn't post design-release processing-time statistics. The Indianapolis BNS figures are the city's posted 'current' first-review times as of May 2025 (a snapshot, not an audited time series), and they reflect first review only, excluding applicant correction time. The 26,633-unit figure is the U.S. Census Building Permits Survey total for 2024; it trails Ohio's 31,411 (the exact national rank sits in the mid-teens).