Updated : 04/22/2024

Overview

Willowbrook, IL has adopted the 2009 International Codes, with amendments, including the 2009 IRC (for One and Two Family Dwellings). Willowbrook, IL Muni. Codes § 4-2-33 (IRC adoption and amendments) and § 4-2-21 (IBC adoption and amendments). 

Helpful resources for Willowbrook, Illinois include the following.

• PLRB, Ordinance and Law Coverage Discussion for Illinois

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.

Willowbrook adopted the 2009 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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See sterling(Willowbrook, IL 4-2-33: RESIDENTIAL CODE ADOPTED:)

...4-2-33: Residential Code ADOPTED:(A) Code Adopted: There is hereby adopted by reference as if fully set out herein that certain Code known as the...

See Amlegal(Willowbrook, IL CHAPTER 2 BUILDING CODE)

...CHAPTER 2 BUILDING CODE SECTION: 4-2-1 : Title 4-2-2 : Purpose 4-2-3 : Chapter As Remedial 4-2-4 : Definitions 4-2-5 : Applicability, Exemptions, More Restrictive Regulations 4-2-6 : Structures Existing On Date Of Adoption Of Chapter, Structures Moved Into Village 4-2-7 : Public Safety, Insurance, Bonds 4-2-8 : Approved Materials, Modifications 4-2-9 : Building Official, Duties And Powers 4-2-10 : Building Permits 4-2-11 : Permit Fees 4-2-12 : Inspections 4-2-13 : Stop Work Orders 4-2-14 : Certificates And Inspections 4-2-15 : Emergency Measures 4-2-16 : Off Street Parking 4-2-17 : Load And Capacity Placard 4-2-18 : Hours For Construction Work 4-2-19 : Rules Adopted By Reference 4-2-20 : Violation Penalties 4-2-21 : Building Code Adopted 4-2-22 : Mechanical Code Adopted 4-2-23 : Reserved 4-2-24 : Plumbing Code Adopted 4-2-25 : Water Well Codes Adopted 4-2-26 : Private Sewage Disposal Code Adopted 4-2-27 : Electrical Code Adopted 4-2-28 : Fire Code Adopted 4-2-29 : DuPage County Countywide Stormwater And Floodplain Ordinance Adopted 4-2-30 : Minimum Security Regulations 4-2-31 : Minimum Housing Regulations 4-2-32 : Swimming Pool Regulations Adopted 4-2-33 : Residential Code Adopted 4-2-34 : Fuel Gas Code Adopted 4-2-35 : Existing Building Code Adopted...

Drip Edge

Drip Edge: no

Ice Barrier

Are ice barriers required for Willowbrook ? Yes
Citation: § 4-2-33
Municipal Code https://sterlingcodifiers.com/codebook/index.php?book_id=449&chapter_id=103602#s1242534
Comments:

TABLE R301.2(1) 
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA 
 

Ground Snow Load	Wind Design		Seismic Design Categoryf	Subject To Damage From
	Speedd (mph)	Topographic Effectsk		Weatheringa	Frost Line Depthb	Termitec
25	90	No	1	Severe	42"	Moderate to heavy

Winter Design Tempe	Ice Barrier Underlayment Requirementh	Flood Hazardsg	Air Freezing Indexi	Mean Annual Tempj
-2	Yes	09/16/2006	2000	50

Government Officials

Comments

Willowbrook, IL has adopted the 2009 IRC including appendix G.

Section R313 Automatic Fire Sprinkler Systems. Delete in its entirety in lieu thereof substitute the following new section R313:

Section R313 Automatic Fire Sprinkler Systems.

Section R313.1 One And Two Family Dwelling Automatic Fire Sprinkler System. A limited area automatic residential fire sprinkler system shall be installed within one and two family dwellings including townhouses.

Section R313.2 Locations. Automatic sprinkler heads shall be placed in all rooms housing gas-fired mechanical appliances such as furnaces, boilers and water heaters and like appliances so as to provide coverage to all areas within ten feet (10') of any part of the gas-fired appliances.

Section R313.3 Design And Installation. Limited area automatic residential fire sprinkler systems shall be designed in accordance with this section, the 2009 international building code, section 903.3.5.1.1 and the Illinois plumbing code as adopted and amended by the village of Willowbrook.

Section P2904.1.1 Required Sprinkler Locations. Delete in its entirety and in lieu thereof substitute the following new section P2904.1.1:

Section P2904.1.1 Required Sprinkler Locations. Automatic sprinkler heads shall be placed in all rooms housing gas-fired mechanical appliances such as furnaces, boilers and water heaters and like appliances so as to provide coverage to all areas within ten feet (10') of any part of the gas-fired appliances. Branch supply pipe to the sprinkler head shall not have a developed length of more than twenty four inches (24") beyond the point of the tap.

Section P2904 Dwelling Unit Fire Sprinkler Systems. Amend by adding the following new section P2904.1.2:

Commercial Building Code

Willowbrook adopted the 2009 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(Willowbrook, IL Municipal Code)

...Adoption not found...

See sterling(Willowbrook, IL 4-2-35: EXISTING BUILDING CODE ADOPTED:)

...4-2-35: EXISTING building code ADOPTED:(A) code Adopted: There is hereby adopted by reference as if fully set out herein that certain code known a...

Existing Buildings

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

Other Building Codes