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Building Safety in Will County, IL (2026)

8 county-level rules, plus city-specific rules for 1 city in Will County, Illinois.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Will County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Elevator Maintenance

Unincorporated Will County's building code amendment requires every elevator's emergency phone to dial directly to the local fire protection district's emergency line, not a private monitoring service, per IBC Section 3003.2.

Will County Requires Direct-Dial Elevator Emergency Phones

Some Restrictions

Will County Code § 150.120 (amending IBC § 3003.2)

IBC Section 3003.2 Firefighter Emergency Operation All emergency elevator phones shall directly dial to the fire protection districts emergency number and conform to the Illinois Accessibility Code 2018.

Fire Sprinkler Requirements

Will County will not enforce fire sprinkler mandates in one- and two-family homes, duplexes or townhouses built to the residential code.

Will County waives home sprinklers

Few Restrictions

Will County Code § 150.140 (IFC § 103.1)

Consistent with the provisions of this ordinance, the Department of Fire Prevention shall not enforce fire suppression (sprinklering) in one and two family dwellings, duplex's and townhouses or any building allowed to be built under the 2018 International Residential Code. The issuance of any county building or occupancy permit shall not be delayed or denied due to a failure to meet any fire su...

Childcare Center Rules

Will County's Building Code classifies day care operations serving twelve or fewer children as Group R-3 residential occupancy instead of commercial Group E, applying only in the unincorporated county outside Joliet, Bolingbrook and other cities.

Will County Daycare Building Classification Rule

Some Restrictions

Will County Code § 150.120 (IBC § 305.2.3)

Twelve (12) or fewer children receiving such day care shall be classified as a Group R-3 occupancy or shall comply with the International Residential Code. Change number of children from five (5) to twelve (12). IBC Section 310.4.1 Care Facilities within a Dwelling    Care facilities for six or fewer persons receiving care that are within a single family dwelling are permitted to comply with th...

Green Building Code

Will County adopts the International Green Construction Code 2018, but only as a voluntary option contractors can request: it's not a mandatory building standard for unincorporated construction projects.

Will County's Green Building Code Is Voluntary

Few Restrictions

Will County Code § 150.002(A)(10)

(A) The following shall be adopted by reference with additional amendments described throughout the remainder of this ordinance: (1) International Building Code 2018. ... (10) International Green Construction Code 2018 on a voluntary basis only upon applicant's request.

Building Permits

Reroofing a home outside Joliet, Bolingbrook and Will County's other cities requires a building permit before work starts, per Code Section 150.003 - emergency repairs get only a next-business-day grace period.

Will County Reroofing Permit Rule

Some Restrictions

Will County Code § 150.003(A)

A permit must be obtained in advance and all other requirements of the Building Ordinance must be complied with whenever a building or parts of appurtenance thereof, such as water supply, sewage disposal, plumbing installation, electrical installation and heating equipment located outside the limits of cities, villages and incorporated towns of this county and regulated by the Building Ordinanc...

Electrical Permits

Unincorporated Will County adopts the 2017 National Electrical Code and requires a permit for all electrical work, issued only to a licensed, bonded electrical contractor listed on the application.

Will County Electrical Permit Rules

Some Restrictions

Will County Code § 150.110(A), (C)

(A) National Electrical Code 2017 Edition. The National Electrical Code 2017 edition has been adopted by Will County and apply to all electrical installations as though fully written and set forth herein, except as specifically noted otherwise in this code. ... (C) Permits. Permits are required for all electrical work. Permits for electrical work shall be issued only when a duly licensed an...

Plumbing Permits

Unincorporated Will County requires a building permit before any plumbing installation, following the adopted 2014 Illinois Plumbing Code.

Will County Plumbing Permit Required

Some Restrictions

Will County Code § 150.003(A)

A permit must be obtained in advance and all other requirements of the Building Ordinance must be complied with whenever a building or parts of appurtenance thereof, such as water supply, sewage disposal, plumbing installation, electrical installation and heating equipment located outside the limits of cities, villages and incorporated towns of this county and regulated by the Building Ordinanc...

Building Inspections

Will County requires up to 20 staged inspections during construction, from footing to final, called 48 hours ahead of the Building Division.

Will County Building Inspection Stages

Some Restrictions

Will County Code § 150.009(I)

Required inspections and notice for inspection. The following listed inspections are required to be made when applicable to the permitted project. The owner or contractor shall request the designated inspection 48 hours in advance. (Phone 815-727-8634) Safe access (ladder or temporary stairs) shall be provided as per OSHA rules and regulations. If someone needs to be present for the inspection ...

Building Safety by City in Will County

1 cities in Will County have their own building safety rules. Each link goes to that city's dedicated page with code citations.

All Will County ordinances

See every category we cover for Will County: parking, noise, fences, fires, animals, pools, and more.

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