Updated : 04/22/2024

Overview

New Castle, CO adopts the following codes:

• The International Building Code, 2015 edition, including Appendices B, G, I, and J. New Castle, CO Muni. Code § 15.08.010 (adopted) with amendments at § 15.08.020.
• The International Residential Code, 2015 edition, including Appendices H, J, and S. New Castle, CO Muni. Code § 15.10.010 (adopted) with amendments at § 15.10.020.
• The International Existing Building Code, 2015 edition, including all appendices. New Castle, CO Muni. Code § 15.18.010 (adopted) with amendments at § 15.18.020.
• The Uniform Code for the Abatement of Dangerous Buildings, 1994 edition. New Castle, CO Muni. Code § 15.20.010 (adopted).

Helpful resources for New Castle, Colorado include the following.

• PLRB, Ordinance and Law Coverage Discussion for Colorado

Residential Building Code

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

New Castle adopted the 2015 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.

Auto Search - beta:

2021 IRC(New Castle, CO 15.10.040 - International Residential Code Commentary.)

...The Commentary to the International Residential Code, 2021 Edition, published by the International Code Council, 4051 West Flossmoor Road, Country Club Road, Illinois 60478-5795 is hereby adopted as an enforcement and interpretive guide. The building official, or any authorized representative, shall have the discretion to apply the contents...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for New Castle ? Yes
Citation: New Castle, CO Muni. Code § 15.10.020.
Municipal Code https://library.municode.com/co/new_castle/codes/code_of_ordinances?nodeId=TIT15BUCO_CH15.10INRECO_15.10.020AM
Comments:

TABLE 301.2(1) shall provide as follows:

GROUND SNOW LOAD	WIND SPEED (mph)	SEISMIC DESIGN CATEGORY	SUBJECT TO DAMAGE FROM				WINTER DESIGN TEMP	ICE SHIELD UNDERLAYMENT REQUIRED	FLOOD HAZARDS	AIR FREEZING INDEX	MEAN ANNUAL TEMPT
			WEATHERING	FROST LINE DEPTH	TERMITE	DECAY
57 PSF	90 mph	C	Severe	36"	Slight to moderate	Slight	-2 F	Yes	Yes/10-15-85	2500	48 F

Comments

New Castle, CO adopts the International Residential Code, 2015 edition, including Appendices H, J, and S. New Castle, CO Muni. Code § 15.10.010 (adopted) with amendments at § 15.10.020.

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.

Refer to Appendix J of the adopted 2015 IRC.

Commercial Building Code

New Castle adopted the 2015 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.

Auto Search - beta:

2015 IBC(New Castle, CO 15.08.040 - International Building Code Commentary.)

...The Commentary to the International Building Code, 2015 Edition, published by the International Code Council, 4051 West Flossmoor Road, Country Club Road, Illinois 60478-5795 is hereby adopted as an enforcement and interpretive guide. The building official, or any authorized representative, shall have the discretion to apply the contents of...

Comments

New Castle, CO adopts the International Building Code, 2015 edition, including Appendices B, G, I, and J. New Castle, CO Muni. Code § 15.08.010 (adopted) with amendments at § 15.08.020.

Existing Buildings

New Castle, CO adopts the International Existing Building Code, 2015 edition, including all appendices. New Castle, CO Muni. Code § 15.18.010 (adopted) with amendments at § 15.18.020.

Other Building Codes