Broomfield, CO Building Safety: Green Building Code (2026)
Key Facts
- Governing chapter
- 15-07, Colorado Low Energy and Carbon Code
- Readopted
- Ord. No. 2295, effective 2-24-26
- New requirement
- Demand-responsive heating/cooling controls (§ R403.5.5)
- Tightened exception
- Additions under 1,000 sf lose efficiency-credit shortcut
- Design snow load input
- 42 psf or ASCE 7-22
- Max penalty
- $2,650 fine or 364 days jail
Summary
Broomfield enforces green-building energy standards through its own amended chapter 15-07, the Colorado Low Energy and Carbon Code, readopted by Ordinance No. 2295 in February 2026. Local amendments go beyond the base code by requiring demand-responsive controls on electric heating and cooling systems and by tightening the energy-efficiency credit available to small home additions.
15-07-010 - Amendments to the Colorado Low Energy and Carbon Code. The following amendments are hereby made to the Colorado Low Energy and Carbon Code: ... (C)Section R403.5.5 Demand responsive controls for heating and cooling systems is added as follows: R403.5.5 Demand responsive controls for heating and cooling systems. Electric heating and cooling systems for residential buildings shall be provided with demand responsive controls that meet the requirements of Appendix CI Section 101. ... (F)Section R502.2.5 Additional energy efficiency credit requirements: Delete exception #1 below:1.Additions that are less than 1,000 square feet (93sm) of conditioned floor area and increase the conditioned floor area by less than 25 per cent
Full Breakdown
Chapter 15-07 replaced the former International Energy Conservation Code chapter in February 2026 with the Colorado Low Energy and Carbon Code, again layered with Broomfield-specific amendments under § 15-07-010. Section R403.5.5, added by subsection (C), requires that electric heating and cooling systems installed in residential buildings include demand-responsive controls meeting Appendix CI Section 101, a measure tied to grid-flexibility goals rather than the code's baseline text. Subsection (F) removes an efficiency shortcut that would otherwise have let small home additions skip extra energy-efficiency credit: additions under 1,000 square feet that grow a home's conditioned floor area by less than 25 percent no longer qualify for that exception under § R502.2.5, meaning even modest additions must meet the fuller efficiency credit requirement.
The chapter also folds in local design data used to run mandatory Manual J and equivalent calculations, including a 5,344-foot elevation, 40-degree latitude, and 1-degree winter design temperature under Tables 302.1 and 302.2. Compliance is verified by the building official through the permit and inspection process in chapter 15-03, including the energy-efficiency inspections described at § 15-03-110(C)(9), before a certificate of occupancy issues.
Violations & Fines
Building or altering a home without meeting the Colorado Low Energy and Carbon Code amendments in chapter 15-07, including the required demand-responsive controls and energy-efficiency credit calculations, is treated as a code violation subject to the chapter 1-12 general penalty: a fine of up to $2,650.00, imprisonment of up to 364 days, or both, with continuing noncompliance counted as a separate offense each day. The building official may also withhold the required energy-efficiency inspection approval and certificate of occupancy.
Frequently Asked Questions
What energy code does Broomfield use for green building requirements?
Do electric heating and cooling systems need special controls in Broomfield?
Can a small home addition skip the extra energy-efficiency credit requirement?
Who confirms energy code compliance before a home can be occupied?
Sources & Official References
Other rules in Broomfield
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