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Johnson County, Kansas Building Codes

Updated : 04/22/2024

Overview

Johnson County, KS has adopted the 2012 International Codes, with amendments, including the 2012 IRC (for One and Two Family Dwellings) and IBC. Johnson County, KS Art.3 Sec.1 (IRC adoption), Art.3 Sec.5 (IRC amendment), Art.2 Sec.1 (IBC adoption) and Art.2 Sec.5 (IBC amendments).

Helpful resources for Johnson County, Kansas include the following.

Residential Building Code

Kansas has yet to adopt a statewide residential code. Local laws will control.See PLRB, Kansas Building Codes for more information on state level codes.

Johnson County adopted the 2012 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 Muni. Code(Johnson County, KS Sec. 7. - Applicable building codes.)

...private sewage treatment system regulated under this code shall comply with and satisfy the specifications and requirements, whenever applicable, of the International Building Code and the International Plumbing Code, or similar codifications, as adopted by and in effect in Johnson County, Kansas, or other codes or ordinances, as adopted by any...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Johnson County ? Yes
Citation: Art. 1 Sec 5
Municipal Code https://www.jocogov.org/sites/default/files/documents/BLD/ARTICLE%203a.pdf#page=7
Comments:

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

GROUND SNOW LOAD: 20

WIND DESIGN:  Speed (mph) – 90, Topographic effects – No

SEISMIC DESIGN CATEGORY: A

SUBJECT TO DAMAGE FROM: Weathering – Severe,  Frost line depth – 36", Termite – M-H

WINTER DESIGN TEMP: 6°F

ICE BARRIER UNDERLAYMENT REQUIRED: Yes

FLOOD HAZARDS:

AIR FREEZING INDEX: 92.7

MEAN ANNUAL TEMP: 55°F

Comments

Johnson County, KS has adopted the 2012 IRC including appendices  E, G, H, J, K, P, and O. Johnson County, KS Art.3 Sec.1.

The following provisions of the International Residential Code, as adopted, shall be deleted and not applicable under this Code:  Section R309.5 Fire Sprinklers. Johnson County, KS Art.3 Sec. 3.

R313.2 One- and two-family dwellings automatic fire systems. An automatic residential fire sprinkler system may be installed in one- and two-family dwellings. Exception: An automatic residential fire sprinkler system shall not be required for additions or alterations to existing buildings that are not already provided with an automatic residential sprinkler system. Jewell County, KS Art.3 Sec. 5.

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.

Johnson County, KS has adopted the 2012 IRC including appendix J. Johnson County, KS Art.3 Sec.1.

Commercial Building Code

Johnson County adopted the 2012 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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2006 IBC with Kansas amendments(Johnson County, KS Municipal Code)

...Adoption not found...

Comments

Johnson County, KS has adopted the 2012 IBC including appendices  C, E, F, G, I, and J. Johnson County, KS Art.2 Sec.1.

Existing Buildings

Johnson County, KS did not adopt the IEBC, therefore Chapter 34 of the IBC would apply.

Other Building Codes

Johnson County, KS also adopted the following codes:

2012 International Energy Conservation Code. Johnson County, KS Art.11 Sec.1 (adoption) and Art.11 Sec. 5 (amendments).

2012 International Fire Code. Johnson County, KS Art.10 Sec.1 (adoption) and Art.10 Sec. 5 (amendments).

2012 International Fuel Gas Code. Johnson County, KS Art.4 Sec.1 (adoption) and Art.4 Sec. 5 (amendments).

2012 International Mechanical Code. Johnson County, KS Art.6 Sec.1 (adoption) and Art.6 Sec. 5 (amendments).

2012 International Plumbing Code. Johnson County, KS Art.5 Sec.1 (adoption) and Art.5 Sec. 5 (amendments).

2012 International Property Maintenance Code. Johnson County, KS Art.9 Sec.1 (adoption) and Art.9 Sec. 5 (amendments).

2011 National Electrical Code (NFPA 70). Johnson County, KS Art.8 Sec.1 (adoption) and Art.8 Sec. 5 (amendments).