IL SB4063

Municipalities must complete initial plan reviews within 15 business days for single-family and two-family residential projects, or 30 business days for multifamily, mixed-use, or commercial projects.

If a municipality misses plan review deadlines or fails to conduct required inspections within 2 business days, applicants may hire qualified third-party licensed architects or engineers to perform the reviews or inspections instead.

Municipalities must accept third-party plan reviews and inspection reports demonstrating code compliance and cannot charge fees for work performed by third-party reviewers or inspectors.

Third-party reviewers and inspectors must hold certifications from organizations like the International Code Council and must disclose conflicts of interest; they cannot review or inspect their own work or property.

The bill limits home rule powers, requiring all municipalities to comply with these statewide standards for building permit timelines and third-party review options.