CTBuilding Code

Questions about the Connecticut State Building Code?

1. Contact your Local Building Inspector. Each municipality in Connecticut has a Local Building Inspector who can answer most owner and contractor questions. Click here for the phone number and contact information about your Local Building Inspector.

2. If you are planning to build a building or alter a building, a professional engineer or architect is the place to start. You can find a list of engineering firms offering services to the public here. You can find an architect here.

The State of Connecticut adopts a statewide Building Code.  This Building Code is applicable in all municipalities within the state.  Municipalities in Connecticut are not permitted to adopt an alternative Building Code, nor are they permitted to amend the State Building Code.

The current State Building Code can be downloaded from the website of the Office of the State Building Inspector. Click here.

Anyone designing a project is urged to review this document carefully as it contains a number of provisions that are unique to the State of Connecticut.  Some of these provisions are as follows:

The wind, snow and earthquake maps have been deleted from both the IBC and the IRC.  In the IBC, the ground snow load, basic wind speed and spectral accelerations for each municipality are tabulated in Appendix “K”.  In the IRC, the basic wind speed for each municipality is tabulated in Appendix “M”; the ground snow load is 30 psf and the seismic design category is “B” for all municipalities.

  • Buildings which exceed certain “Threshold Limits” are subject to mandatory structural peer reviews (IBC Section 106.1.5).
  • The minimum flat roof snow load is 30 psf in all municipalities (IBC Section 1608.3).
  • The minimum frost protection depth is 42” in all municipalities (IBC Section 1805.2.1; IRC Table 301.2(1))

Any modifications to the State Building Code must be approved by the State Building Inspector.  Forms and instructions for filing a Request for Modification of the State Building Code can be downloaded from the website of the Office of the State Building Inspector. Click here.

 

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