Tazewell County, IL Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Sprinkler requirement
- not required in 1-2 family homes
- Amended provision
- IRC § R313.2 via §154.041(DD)
- If installed voluntarily
- must meet IRC sprinkler standards
- Adopted residential code
- 2018 IRC (§154.040)
- Penalty
- up to $500 per day (§154.999)
Summary
Tazewell County adopted the 2018 International Residential Code but stripped out its automatic fire sprinkler mandate. Section 154.041(DD) rewrites IRC § R313.2 so new one- and two-family homes in the unincorporated county are not required to install a residential fire sprinkler system, though any system that is installed must still meet the IRC's own sprinkler standards.
(DD) Section R313.2 “One- and two-family dwellings automatic fire systems” is hereby amended to read as follows: An automatic residential fire sprinkler system shall not be required to be installed in one- and two-family dwellings. If one is installed, however, it shall comply with the relevant code sections of the International Residential Code.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-7: Supplement contains: Local legislation current through Ord. LU-21-12, passed 9-29-2021; and Res. LU-26-09, passed 7-29-2026).
Full Breakdown
041 to fit local conditions. 2, titled 'One- and two-family dwellings automatic fire systems,' the model code provision that would otherwise require a sprinkler system in every new one- and two-family home. The county's amendment flips that default: an automatic residential fire sprinkler system shall not be required to be installed in one- and two-family dwellings. 041(DD) requires that system to comply with the relevant code sections of the IRC governing sprinkler design and installation. The same amendment section also strikes the IRC's separate floodplain-construction and flood-resistant-installation provisions because the county regulates flood hazard areas separately under Chapter 152, and removes the under-stair protection and fire-protection-of-floors sections. 041 division by division rather than assume the unamended model code language controls, since the county has replaced dozens of individual sections.
Violations & Fines
Fire and building code violations, including a sprinkler system installed but not built to IRC standards, fall under § 154.999(A)(1): a petty offense fined up to $500 per offense, with each day a violation continues counted separately. The Community Development Administrator can also issue a stop work order under § 154.010(C) and refer noncompliance to the State's Attorney or the county's Code Hearing Unit.
Frequently Asked Questions
Does Tazewell County require fire sprinklers in new houses?
If I install a sprinkler system voluntarily, does it have to meet a specific standard?
What building code did the county adopt for houses?
What's the penalty for a building code violation in the county?
Sources & Official References
Other rules in Tazewell County
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