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Columbus, Ohio Building Codes

Updated : 05/28/2024

Overview

The State of Ohio adopts and enforces a set of statewide mandatory construction codes. The building codes are strictly mandated throughout the state; however, local jurisdictions may adopt additional more stringent provisions so long as they are not in conflict with the state code. Ohio Rev. Code Ann. § 3781.01(A). Furthermore, jurisdictions may seek variances from the state for certain provisions that are in conflict with the code yet are deemed necessary to secure the health and safety within the local governing authority’s jurisdiction. Id.(C)(2)(b).

The State of Ohio adopts the following codes:

  • The 2019 Ohio Residential Code (based on the 2018 International Residential Code). Columbus, OH, Muni. Code § 4127.01 (adoption), § 4127.09 (amendments), and Ohio Admin. Code § 4101.8.
  • The 2024 Ohio Building Code (based on the 2021 International Building Code). Columbus, OH, Muni. Code § 4125.01 (adoption), §§ 4125.03 – 4125.09 (amendments), and Ohio Admin. Code § 4101.1.
  • The 2024 Ohio Existing Building Code (based on the 2021 International Existing Building Code). Ohio Admin. Code § 4101:1-34-01 (adoption and amendments).
Helpful resources for Columbus, Ohio include the following.

Residential Building Code

Ohio adopted a statewide mandatory residential code that will control; however, local governments are free to make laws more strict (with some limitations).See PLRB, Ohio Building Codes for more information on state level codes.

Columbus adopted the 2018 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 the adoption without amendment to the model code here.

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2019 Residential Code of Ohio (2018 IRC)(Columbus, OH 4127.01 - Residential Code of Ohio (RCO).)

...if set out fully at length herein and is referred to as the RCO. Included in this adoption shall be the residential swimming pool section of the current adopted Ohio Building Code. (B) Plans and specifications submitted to the Department for approval for...

Drip Edge

Drip Edge: No

Ice Barrier

Are ice barriers required for Columbus ? Yes
Citation: Ohio Admin. Code 4101.8-3 - 301.2(1) (Design criteria)
Municipal Code https://codes.ohio.gov/oac/4101:8-3-01v1
Comments:

Ohio completed Table 301.2(1), Climatic and Geographic Design Criteria, and indicated that ice barriers are required. Ohio Admin. Code § 4101.8-3-01, Table 301.2(1).

Government Officials
Last Name First Name Title E-mail Phone Note
Ghosh Amit Chief Building Official ABGhosh@columbus.gov (614) 645-5990

Comments

The State of Ohio adopts and enforces a set of statewide mandatory construction codes. The building codes are strictly mandated throughout the state; however, local jurisdictions may adopt additional more stringent provisions so long as they are not in conflict with the state code. Ohio Rev. Code Ann. § 3781.01(A). Furthermore, jurisdictions may seek variances from the state for certain provisions that are in conflict with the code yet are deemed necessary to secure the health and safety within the local governing authority’s jurisdiction. Id.(C)(2)(b).

Columbus, Ohio, adopted the 2024 Residential Code (based on the 2018 International Residential Code). Ohio Admin. Code § 4101.8 and Columbus, OH, Muni. Code § 4103.03 (adoption). 

Drip Edges

State amendments modify the drip-edge provision of the IRC to no longer explicitly require drip-edges, referring instead to sections. 903.1 and 905.1, which require installing roof coverings in accordance with the approved manufacturer’s installation instructions. Ohio Admin. Code § 4101:8-9-01 §§ 905.2.85, 903.1, and 905.1.

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.

No adoption of Appendix J was found in the municipal code or city ordinances.

Ohio adopted the 2021 International Existing Building Code (IEBC), chapters 2 to 16 and Resource A, with amendments, as the 2024 Ohio Existing Building Code. Ohio Rev. Code Ann. § 3781.10(A)(1) (authority); Ohio Admin. Code § 4101:1-34-01 (adoption and amendments) (Ohio official site has not updated this section as of March 4, 2024); 2024 OEBC.

Commercial Building Code

Columbus adopted the 2021 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 the adoption without amendment to the model code here.

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2024 Ohio Building Code (2021 IBC)(Columbus, OH Title 41 - BUILDING CODE)

...0455-2010, § 101, adopted April 5, 2010, amended the title of Title 41 to read as herein set out. Prior to inclusion of said ordinance, Title 41 was entitled, "Part I, Building Code."...

Comments

The State of Ohio adopts and enforces a set of statewide mandatory construction codes. The building codes are strictly mandated throughout the state; however, local jurisdictions may adopt additional more stringent provisions so long as they are not in conflict with the state code. Ohio Rev. Code Ann. § 3781.01(A). Furthermore, jurisdictions may seek variances from the state for certain provisions that are in conflict with the code yet are deemed necessary to secure the health and safety within the local governing authority’s jurisdiction. Id.(C)(2)(b).

Columbus, Ohio, adopted the 2024 Ohio Building Code (based on the 2021 International Building Code). Ohio Admin. Code § 4101.1 and Columbus, OH, Muni. Code § 4103.03 (adoption). 

Existing Buildings

Ohio adopted the 2021 International Existing Building Code (IEBC), chapters 2 to 16 and Resource A, with amendments, as the 2024 Ohio Existing Building Code. Ohio Rev. Code Ann. § 3781.10(A)(1) (authority); Ohio Admin. Code § 4101:1-34-01 (adoption and amendments) (Ohio official site has not updated this section as of March 4, 2024); 2024 OEBC.

Other Building Codes

The State of Ohio adopts and enforces a set of statewide mandatory construction codes. The building codes are strictly mandated throughout the state; however, local jurisdictions may adopt additional more stringent provisions so long as they are not in conflict with the state code. Ohio Rev. Code Ann. § 3781.01(A). Furthermore, jurisdictions may seek variances from the state for certain provisions that are in conflict with the code yet are deemed necessary to secure the health and safety within the local governing authority’s jurisdiction. Id.(C)(2)(b).

Ohio’s building codes contain references to other codes that are applicable as references in limited scope as specified by the building or residential codes. These codes include:

Columbus, OH, Muni. Code § 4103.03 (adoption).