Marion adopts 2021 codes, removes sprinkler requirement for many new homes

Marion approved a new set of building, property-maintenance, fire and residential codes that will change requirements for covered new construction beginning September 1, 2026.

The Marion City Council approved Ordinance 4121 on July 13. The ordinance replaces the city’s 2018 editions of the International Building Code, International Property Maintenance Code and International Fire Code with 2021 editions. It also adopts the 2021 International Residential Code.

What changes for new homes

The ordinance removes the automatic-sprinkler provisions in Section R313 of the 2021 residential code for new one-family dwellings, two-family dwellings and townhouses.

Under the ordinance, sprinklers will not be required solely as a condition of permit issuance, plan approval, inspection approval, a certificate of occupancy or another city approval for those residential structures. The change takes effect with the rest of the code update on September 1.

The language does not eliminate every possible sprinkler requirement. The ordinance says another applicable state law, federal law or city-adopted code provision could still require sprinklers for a particular project or circumstance.

Voluntary systems remain allowed

Homeowners, builders and developers may still choose to install automatic sprinklers. If a system is installed, it must meet applicable technical standards and inspection requirements.

The Marion Fire Department’s building-inspection guidance shows that sprinkler and fire-alarm systems remain part of the department’s inspection work when those systems are installed or required. The department also lists testing and inspection responsibilities for fire-protection equipment.

Who should pay attention

Builders and developers planning residential projects in Marion should confirm which code edition and requirements apply to permits submitted before and after September 1. The effective date is separate from the council’s July 13 approval date, so project timing may matter.

Homeowners considering new construction should understand that Marion’s amended residential code will no longer impose the same automatic-sprinkler requirement on the covered types of homes. A voluntary system remains an option, and other project-specific requirements may still apply.

Marion Building and Code Services handles residential building permits, inspections and development-related code administration. Applicants should contact the city with project-specific questions. The Marion Fire Department can provide additional guidance on fire-protection and inspection issues.

The ordinance changes Marion’s municipal code; it is not a statewide Illinois change. Applicants should review city requirements together with any applicable Illinois plumbing, building or fire-safety rules before finalizing plans.

Sources

• Marion Ordinance 4121
• City of Marion Building and Code Services
• Marion Fire Department Building Inspections
• Illinois Capital Development Board Building Codes and Regulations