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Will County, Illinois Building Codes

Updated : 04/22/2024

Overview

Will County, IL has adopted the 2012 International Codes, with amendments, including the 2012 IRC and IBC. Will County, IL County Codes § 150.030 (adoptions), § 150.180 (IRC amendments), and § 150.120 (IBC amendments).

Helpful resources for Will County, Illinois include the following.

Residential Building Code

Illinois has yet to adopt a statewide residential code. Local laws will control.See PLRB, Illinois Building Codes for more information on state level codes.

Will County adopted the 2012 IRC, locally. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the model code here.

You can find information about amendments to the model code here.

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2018 IRC(Will County, IL CHAPTER 150: BUILDING CODE)

...CHAPTER 150: BUILDING CODE Section General Provisions 150.001 Short title 150.002 Adoption of codes 150.003 Permits and scope of regulations 150.004 Agricultural exemptions 150.005 Rules adopted by reference 150.006 Enforcement 150.007 Relief from responsibility 150.008 Fees 150.009 Regulations for administration of building ordinance 150.010 Inspection of pre-fabricated structures 150.011 Alternative materials, design and methods of construction 150.012 Notice of violation Editor’s Note: For Building Code Fee Schedule, see § 158.02 Minimum Building Requirements 150.030 Building requirements 150.040 Wood frame construction requirements 150.050 Roofing requirements 150.060 Fire resistant construction requirements 150.070 Concrete requirements 150.080 Heating, ventilation, and air conditioning (HVAC) requirements 150.110 Electrical requirements 150.114 Demolition requirements 150.115 Single family residences, duplex and townhouse existing building code 150.116 Building Code requirements for temporary structures and requirements associated with zoning temporary use permits International Building Code 2018 150.120 Amendments to the International Building Code Illinois Energy Efficient Building Act 150.130 Illinois Energy Efficient Building Act International Fire Code 2018 150.140 Amendments to the International Fire Code International Fuel Gas Code 2018 150.150 Amendments to the International Fuel Gas Code International Mechanical Code 2018 150.160 Amendments to the International Mechanical Code International Property and Maintenance Code 2018 150.170 Amendments to the International Property and Maintenance Code International Residential Code 2018 150.180 Amendment to the International Residential Code International Swimming Pool and Spa Code 2018 150.190 Amendments to the International Swimming Pool and Spa Code 2018 150.999 Fines; penalties; costs...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Will County ? Undetermined
Comments:

R301.2(i) Will County, Illinois.

   Snow Load 25 Pounds per Square Foot (no reductions considered)

   Wind Speed 90 (Uplift > 20 Lbs./Sq. Ft.)

   Seismic B

   Weathering Severe

   Frost Line 42"

   Termite Moderate to heavy

   Decay Slight to moderate

   Winter Design Temperature 6,155 Heating Degree Days

   Water Resource Ordinance for Unincorporated Will County

Government Officials
Last Name First Name Title E-mail Phone Note
Building Division building@willcountylanduse.com 815/727-8634

Comments

Will County, IL has adopted the 2012 IRC including appendices A, B, C, E, F, G, H, J and K. 

R313 Automatic Fire Sprinkler Systems – Delete this section in its entirety.

Existing Buildings

Existing buildings, meaning buildings that were built in accordance to code at the time of construction, typically merit extra consideration in a current updated code.

Will County, IL has adopted the 2012 IRC including appendix J. Will County, IL County Code § 150.180.

Commercial Building Code

Will County adopted the 2012 IBC, locally . Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the code here.You can find information about amendments to the model code here.

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See Amlegal(Will County, IL Municipal Code)

...Adoption not found...

Comments

Will County, IL has adopted the 2012 IBC including appendices A, B, G, and I. 

Existing Buildings

Will County, IL did not adopt the IEBC, therefore Chapter 34 of the IBC would apply.

Other Building Codes

Will County, IL also adopted the following codes:

Illinois State Plumbing Code. Will County, IL County Code § 150.030. Per website, edition is 2014.

2012 International Green Construction Code. Will County, IL County Code § 150.030.

2011 National Electric Code (NFPA 70). Will County, IL County Code § 150.110.

2012 International Mechanical Code.Will County, IL County Code § 150.030.

2012 International Property Maintenance Code. Will County, IL County Code § 150.030.

2012 International Fuel Gas Code. Will County, IL County Code § 150.030.

2012 International Fire Code. Will County, IL County Code § 150.030.

2012 International Energy Conservation Code. Will County, IL County Code § 150.030.

2018 Illinois Accessibility Code. Per website.