Updated : 04/22/2024

Overview

Calvert County, MD, adopted the 2009 IBC and IRC. Adopted by the Board of County Commissioners of Calvert County 9-3-1996 by Res. No. 36-96; amended in its entirety 4-19-2011 by Ord. No. 09-11, provided in Appendix A.

Helpful resources for Calvert County, Maryland include the following.

• PLRB, Ordinance and Law Coverage Discussion for Maryland

Residential Building Code

Maryland adopted a model state residential code but it is not in force unless adopted locally.See PLRB, Maryland Building Codes for more information on state level codes.

Calvert County 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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Maryland Bldg. Performance Standards (2018 IRC)(Calvert County , MD § 18-1 Codes adopted by reference; amendments and deletions.)

...The International Building Code 2018 IBC published by the Inc is hereby adopted as the span classhighlightBuilding Codespan for Calvert County with the E F Q and S of the International span classhighlightResidentialspan...

Drip Edge

Drip Edge: no

Ice Barrier

Are ice barriers required for Calvert County ? Yes
Municipal Code https://ecode360.com/attachment/CA1802/CA1802-018a%20Appendix%20A.pdf

Comments

Calvert County, MD, adopted the 2009 IBC and IRC. Adopted by the Board of County Commissioners of Calvert County 9-3-1996 by Res. No. 36-96; amended in its entirety 4-19-2011 by Ord. No. 09-11, provided in Appendix A.

101.2 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.

Exception 1: Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories above grade plane in height with a separate means of egress and their accessory structures shall comply with the International Residential Code. 

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.

Calvert County, MD, did NOT adopt Appendix J as part of the code. Calvert County, MD, County Code § 3401.1. Appendix J provides guidance on existing buildings.

101.2 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures. 

Exception 2: Existing buildings undergoing repair, alterations or additions and changes of occupancy shall comply with the Maryland Building Rehabilitation Code set forth in COMAR Title 5, Subtitle 16. 

Commercial Building Code

Calvert County adopted the 1996 BOCA National Building CodeYou can find a copy of the code here.You can find information about amendments to the model code here.

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. Maryland Bldg. Performance Standards (2018 IBC)(Calvert County , MD Municipal Code)

...Adoption not found...

Comments

Calvert County, MD, adopted the 2009 IBC and IRC. Adopted by the Board of County Commissioners of Calvert County 9-3-1996 by Res. No. 36-96; amended in its entirety 4-19-2011 by Ord. No. 09-11, provided in Appendix A.

Existing Buildings

Existing buildings undergoing repair, alterations or additions and changes of occupancy shall comply with the Maryland Building Rehabilitation Code set forth in COMAR Title 5, Subtitle 16. The Maryland Building Rehabilitation Code adopted the 2012 IEBC; therefore, Calvert County adopts it as well.

 

Other Building Codes