International Residential Code (IRC)
Building codes are regulations that set out the standards to which buildings and other structures must conform. The International Residential Code (IRC) is one of the codes established in the US by the International Code Council (ICC) and is applied by most of the country’s jurisdictions, as well as in some other countries internationally (where it may be amended to reflect local conditions or local legislation).
It stipulates that anyone who intends to build, alter, repair, renovate or demolish a building or structure to which the code applies, must apply for and obtain the required building permit.
The IRC applies to new one- and two-family dwellings and townhouses which are no taller than three storeys. It is intended to ensure efficient and flexible building designs that protect health and safety and encourage the use of technological advances.
It covers all aspects of construction in a single code, including; building, plumbing, mechanical services, energy conservation, fuel gas and electrical provisions. It offers both a prescriptive approach and a performance approach to determining compliance.
[edit] Related articles on Designing Buildings Wiki
- Building codes.
- Building regulations.
- Design review.
- CE marking.
- International building code (IBC).
- International Code Council ICC.
- International Existing Building Code (IEBC).
- International Zoning Code (IZC).
- Licensed contractors in the USA.
- Performance specification.
- Planning permission.
- Structural engineering codes.
- The role of codes, standards and approvals in delivering fire safety.
- What approvals are needed before construction begins.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
New guidance for professional practice, cultural change and regulation in social housing.
The heritage of nuclear and conventional power stations.
New measures to stop people being ripped off
Government to protect families from cowboy builders and aggressive bailiffs.
New Futurebuild showcase brings an innovation-first approach.
National Planning Policy Framework
Understanding the 2026 changes.
ECA's public affairs priorities
Member consultation opens to shape priorities for 2027 to 2030.
Dutyholder responsibilities from 1 July 2026.
Where performance meets practice
The Building Envelope Stage at UKCW Birmingham.
CIAT publishes briefing on planning reforms.
Leaders in Learning for Practice Network
Call for conservation leaders in learning to register interest in new network.
The importance of early engagement
Construction lessons from the Trillium HealthWorks Experience Centre.
Mayors are to be given planning call in powers
Mayors across England will be able to make the most important planning decisions.

















