Kansas City, MO Building Safety: Green Building Code (2026)
Key Facts
- Code adopted
- IECC 2021 with KC amendments
- EV/solar conduit
- Required in all new buildings
- Wall insulation
- R-19 minimum, Zone 4 (non-marine)
- HERS/ERI score
- 70 under 2,000 sf / 65 larger
- Max penalty
- $500 fine, 180 days jail
Summary
Kansas City adopts the 2021 International Energy Conservation Code and requires new buildings to install 2-inch conduit for future rooftop solar panels and electric vehicle chargers, plus tighter wall insulation and energy performance scores for homes.
The International Energy Conservation Code (2021), promulgated by the International Code Council, is adopted and incorporated in this article by reference as if fully set forth... C405.12 Electrical for future use on new buildings with electrical services 1.Provide 2-inch conduit run up to attic for future photovoltaic systems.2.Provide 2-inch conduit run into parking areas for future electric vehicle charging stations.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 139 | Zoning and Development Code: Supplement 38).
Full Breakdown
Kansas City amended its Energy Conservation Code (IECC 2021) under Code of Ordinances Article XIV, Chapter 18. Every new building with electrical service must have a 2-inch conduit run to the attic for future rooftop photovoltaic systems and a 2-inch conduit into parking or garage areas for future EV chargers. Zone 4 wood-frame walls (except marine) must hit R-19 insulation, and single-family homes under 2,000 square feet need a HERS/Energy Rating Index score of 70 (65 for larger homes). These are citywide construction standards, not limited to city-owned buildings, and were most recently amended February 2026.
Violations & Fines
Building without following Chapter 18's amended energy code is an ordinance violation: up to a $500 fine and 180 days in jail per day of violation, plus permit and inspection failures trigger escalating repeat-offense fines under Sec. 18-15.
Frequently Asked Questions
Does Kansas City require solar-ready wiring in new homes?
Is EV charger wiring mandatory for new construction?
Does this apply only to city government buildings?
Sources & Official References
Other rules in Kansas City
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