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Las Cruces, NM Building Safety: Green Building Code (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Energy code adopted
2018 IECC
Adopting section
LDC § 30-721(A)(3)
State reference
NMAC 14.7.6 / 14.7.9
Effective date
September 25, 2020
Enforcing agency
Community Development Dept.
Appeal window
30 days to building official

Summary

Las Cruces adopts the 2018 International Energy Conservation Code as its energy and green building standard for new construction and additions. The Community Development Department checks IECC compliance, including energy worksheets, before issuing a building permit under Land Development Code Section 30-721(A)(3), which sets the state-approved edition and effective date.

Energy Code. The International Energy Conservation Code promulgated by the International Code Council, as adopted by this jurisdiction. ...(A)The following constitute, or are adopted by reference, as rules, regulations, and/or standards of the city building code and as further amended by this rule:(1)2021 International Building Code... (3)2018 International Energy Conservation Code, as adopted by NMAC 14.7.6.8—14.7.6.14 and NMAC 14.7.9.8—14.7.9.14 (effective 9-25-20) excluding: 14.7.6.9 A (1-3), C-G, I-J. 14.7.9.9 A (1-3), C-H, J-K.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 33 | Land Development Code: Supplement 28).

Full Breakdown

14, effective September 25, 2020. Section 30-722(C) strips out the model code's own construction-document, inspection and board-of-appeals sections (IECC Sections 103, 105 and 109) and substitutes the city's own permit, inspection and appeal procedures found earlier in Chapter 30. In practice this means an applicant does not appeal an energy-code call to a separate energy board; the building official handles it the same way as any other building code dispute. Energy compliance is folded into the standard commercial permit submittal: Section 30-274 requires construction drawings to demonstrate 'Compliance with the International Energy Conservation Code, including worksheets' before the Community Development Department will issue a permit for new commercial or multi-family work.

The 2018 IECC sits alongside the 2021 International Building and Residential Codes, the 2021 Existing Building Code and the New Mexico Earthen Building Materials Code in the same adoption list, all administered by the Community Development Department at 700 N. Main Street, where current copies are kept on file for public inspection under Section 30-721(B). Ordinance No. 3050 (November 20, 2023) is the most recent amendment to this adoption list.

Violations & Fines

Violating any adopted building code, including the energy code, is a petty misdemeanor under Section 30-141, punished as provided in Section 1-10: a fine of up to $500.00, up to 90 days in jail, or both, with each day of a continuing violation a separate offense. The building official may also reject construction drawings that omit required IECC worksheets, issue a correction notice under Section 30-234(b), or suspend or revoke a permit under Section 30-232(e) for code violations discovered after issuance.

Frequently Asked Questions

What energy code applies to new construction in Las Cruces?
Las Cruces enforces the 2018 International Energy Conservation Code, adopted by reference in Land Development Code Section 30-721(A)(3) through NMAC 14.7.6 and 14.7.9, effective September 25, 2020. It applies to new buildings and additions reviewed by the Community Development Department alongside the 2021 IBC and IRC.
Does the city require a separate energy code inspection?
No. Section 30-722(C) deletes the IECC's own inspection section (Section 105) and replaces it with the city's standard building, electrical and mechanical/plumbing inspection process under Chapter 30, Article II. Energy items such as insulation and duct sealing are checked during the regular frame and insulation inspections.
How do I appeal an energy code compliance determination?
File a written appeal with the building official within 30 days of the disputed decision under Section 30-142(a). If the building official's ruling is unsatisfactory, a further appeal goes to the Las Cruces City Council, also within 30 days, per Section 30-142(c).

Sources & Official References

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