Las Cruces building permits
VerifiedDepartment contacts, adopted codes, permit types, fees, and gotchas for Las Cruces, New Mexico.
Last verified 2026-07-02 · Source
Building department
- Address
- 700 N. Main St., Suite 1100, P.O. Box 20000, Las Cruces, NM 88001
- Phone
- 575-528-3222
- Office hours
- Monday, Tuesday, Thursday, Friday 7:30 AM - 5:00 PM; Wednesday 8:00 AM - 2:00 PM (afternoon closed for admin/training); online access 24 hours
- Website
- Official site
Codes adopted
New Mexico sets construction codes statewide by rule, not through home-rule discretion. Under the Construction Industries Licensing Act (NMSA 1978 §§ 60-13-1 et seq.), the state's Construction Industries Commission and Division (CID, within the Regulation & Licensing Department) adopt the technical construction codes codified at New Mexico Administrative Code (NMAC) Title 14 — including the state's own Building, Residential, Existing Building, Mechanical, Fuel Gas, Plumbing, Solar Energy, and Swimming Pool codes, and the National Electrical Code (14.10.4 NMAC currently adopts the 2020 NEC; the CID Commission periodically updates individual code chapters, so confirm the current edition with the applicable authority). Per NMSA 1978 § 60-13-44(E), these state codes "constitute a minimum requirement" binding every political subdivision in New Mexico — no city or county may adopt anything less stringent, though a jurisdiction may adopt stricter local amendments. Enforcement authority runs through whichever entity is the project's Authority Having Jurisdiction (AHJ, defined at NMAC 14.5.1.7.B): under NMSA 1978 § 60-13-41(D)-(F), a municipality or county that employs its own full-time certified building official may self-administer permitting, plan review, and inspection locally (Albuquerque, Santa Fe, Las Cruces, Rio Rancho, Farmington, and Roswell all operate this way); jurisdictions without a certified building official default to direct enforcement by a CID field office (e.g., Hobbs, Alamogordo). Some jurisdictions run a hybrid — locally certified for some trades while CID directly enforces others (Roswell's electrical permitting, for example, reverted to direct CID administration as of January 1, 2026). Always confirm with the specific jurisdiction whether it or the state CID is the acting AHJ for a given trade before submitting plans.
Permit types & fees
Residential Building Permit (New Construction)
Required for new single-family dwellings, townhouses, and duplexes in Las Cruces. Reviewed against the 2021 New Mexico Commercial & Residential Building Code (2021 IBC/IRC) and 2021 New Mexico Energy Conservation Code. Applications submitted through the City of Las Cruces Citizen Portal (Accela).
Residential Addition / Alteration / Remodel Permit
Required for additions, alterations, and remodels to existing single-family dwellings, townhouses, and duplexes in Las Cruces. Uses the same $0.20/sq ft fee structure as new residential construction, applied to the work area.
Residential Electrical Permit
Required for electrical installations, alterations, and repairs in Las Cruces residential properties. Governed by the 2020 New Mexico Electrical Code (2020 NEC), adopted by reference at 14.10.4 NMAC, effective March 28, 2023.
Residential Plumbing Permit
Required for plumbing installations, alterations, and repairs in Las Cruces residential properties. Governed by the 2021 New Mexico Plumbing and Mechanical Code, incorporating the 2021 Uniform Plumbing Code (IAPMO).
Residential Mechanical / HVAC Permit
Required for heating, ventilation, and air conditioning installations in Las Cruces residential properties. Governed by the 2021 New Mexico Plumbing and Mechanical Code, incorporating the 2021 Uniform Mechanical Code (IAPMO).
Roofing Permit (Reroof)
Required for roof replacement work in Las Cruces. Fee follows the same valuation-based Building Permit Fee schedule as general construction.
Solar Photovoltaic (PV) Permit
Required for installation of residential solar photovoltaic systems in Las Cruces. A single flat fee covers plan review, building inspection, and electrical inspection.
Accessory Dwelling Unit (ADU) Permit
Construction of an accessory dwelling unit in Las Cruces is permitted through the standard residential building permit process (no separate ADU fee category is published by the City), subject to the statewide zoning floor established by New Mexico House Bill 425 (2023), codified as an amendment to NMSA 1978 § 3-21-1.
New residential construction activity
New privately-owned residential construction onlyHousing units authorized by building permits for new privately-owned residential construction — this is not total permit volume (no commercial permits or remodels).
- Latest month (2026-05)
- 55units
53 buildings · $14M valuation
- Trailing 12 months
- 162units
3 of 12 months reported · #5 in New Mexico coverage by units
- Year to date (2026 YTD through 2026-05)
- 253units
240 buildings · $63.1M valuation
3 month(s) reported to Census
- Full year 2025
- 642units
594 buildings · $156.3M valuation
3 of 12 months reported; Census estimates include imputation
Source: U.S. Census Bureau, Building Permits Survey (BPS), 2026-05 vintage. Census survey data — separate from the permit-requirements verification above. All New Mexico building activity
Tips & gotchas
- All permit applications in Las Cruces are submitted online through the Citizen Portal (Accela Citizen Access at aca-prod.accela.com/lascruces). The Permitting Counter at 700 N. Main St., Suite 1100 is open to the public 8 a.m. to 5 p.m. Monday-Friday for in-person help, applications, status checks, inspection requests, and payments.
- Standard residential plan review is 3 business days (all agencies: Building, Fire, Utilities, Traffic, Environmental Compliance, Engineering, Zoning/Landscaping, Electrical, Plumbing/Mechanical); Over-The-Counter (OTC) qualifying properties or approved master plan sets in non-flood-zone R1a/R1b districts get 1-business-day review. All flood-zone projects get 3-day review with no exceptions.
- New Mexico is a statewide-minimum-code state under NMSA 1978 § 60-13-44(E) (Construction Industries Licensing Act) — Las Cruces, having its own certified building official and full-service Building and Development Services department, enforces the state-adopted codes locally per § 60-13-41(D)-(F) rather than routing permits through a state Construction Industries Division field office (the CID field-office model applies primarily in areas without a locally employed certified building official, such as unincorporated Doña Ana County).
- The 2020 New Mexico Electrical Code (2020 NEC), adopted at 14.10.4 NMAC effective March 28, 2023, is the current in-force electrical code — verified directly from the primary NMAC regulation text. Do not rely on third-party sites claiming a 2023 NEC adoption for New Mexico; that appears to be inaccurate as of this verification.
- Residential building permit fees are a simple flat $0.20/sq ft of gross floor area (new construction) or work area (remodels/additions) — not an ICC valuation table, unlike Las Cruces's own commercial building permit fee, which does use the ICC Building Valuation Data table.
- Trade permits (electrical, plumbing, mechanical) are flat-fee ($150 standard residential for each trade, $50-65 for demonstrated affordable housing) rather than valuation- or fixture-based, unlike many other jurisdictions.
- All fees are tripled on permits for work started or completed without an approved permit — this triple-fee penalty is repeated throughout the City's fee schedule.
- New Mexico House Bill 425 (2023) created a statewide accessory-dwelling-unit floor (1,000 sq ft cap, 5-ft/10-ft setbacks, no owner-occupancy restriction) that applies even to home-rule municipalities like Las Cruces.
- A pre-submittal meeting is required before applying for a commercial building permit (new construction, addition, or alteration) valued at $1 million or more, and for any multi-family project (duplex or larger) regardless of valuation.