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Mechanical / HVAC Permit in Unincorporated Clark County, Nevada

Required for heating, ventilation, air conditioning, and mechanical system installations in unincorporated Clark County. Simple online permits are available for single residential A/C and furnace replacements without plan review. Clark County uses the Uniform Mechanical Code (UMC), not the IMC.

Verified 2026-07-16 · Source

When you need this permit

  • Installation or replacement of any HVAC equipment: furnaces, air conditioners, heat pumps, condensers
  • A/C or furnace replacement (simple online permit available for residential, one appliance per permit)
  • Multiple appliance replacements require a sub-trade permit, not a simple online permit
  • Mechanical work on manufactured homes permitted by Nevada State Manufactured Housing Division

Required documents

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Fee schedule

Permit Issuance Fee (base fee for all mechanical permits)Table 3-C, Clark County Code §22.02.400 (Ord. No. 4663, 2019; amended Ord. No. 4917, 2022). Re-confirmed on Municode 2026-07-16 — no newer amendment to Table 3-C.
$54.00
Simple Online Permit — Residential A/C or Furnace ReplacementTable 3-C — Simple Online Permit rate for A/C Furnace Replacement (residential)
$61.88
Simple Online Permit — Furnace Replacement < 100K BTUTable 3-C — Simple Online Permit rate
$62.28
Simple Online Permit — Furnace Replacement > 100K BTUTable 3-C — Simple Online Permit rate
$63.81
Simple Online Permit — Residential Condenser ComboTable 3-C — Simple Online Permit rate
$83.34
Non-simple mechanical projects (not specified in Table 3-C)Apply total value of scope to Table 3-A.
Varies — valuation-based per Table 3-A
Re-inspection FeeTable 3-I, Clark County Code §22.02.430
$110.00 each

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Clark County building department
~1–14 business days

How long did your Mechanical / HVAC Permit permit actually take in Unincorporated Clark County?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Mechanical Rough-In

    Ductwork and equipment rough-in before wall cover — clearances and support verified per UMC

  2. 2

    Final

    Equipment operational, combustion air verified, refrigerant charge complete, thermostat functional

See the full Unincorporated Clark County inspection guide — scheduling & re-inspection fees →

Tips

  • Clark County uses the Uniform Mechanical Code (UMC), not the IMC — this is standard for all Southern Nevada (SNBO) jurisdictions.
  • A/C and furnace replacements are the most common simple online permits — issued immediately, no plan review required.
  • If replacing more than one appliance at the same property, you need a separate permit for each appliance (or a sub-trade permit for commercial).
  • Video inspections are available for A/C changeouts.
  • Saturday inspections available for residential HVAC changeouts — call (702) 455-8040 by 2 p.m. Friday.

Frequently asked questions

Yes. A/C and furnace replacements require a Mechanical Simple Online Permit via the Citizen Access Portal. The fee is $61.88 for a standard A/C or furnace replacement, or $83.34 for a condenser combo, per Table 3-C. Permits are issued immediately without plan review.

In Unincorporated Clark County, the published Permit Issuance Fee (base fee for all mechanical permits) is: $54.00. Additional published fees: Simple Online Permit — Residential A/C or Furnace Replacement — $61.88; Simple Online Permit — Furnace Replacement < 100K BTU — $62.28; Simple Online Permit — Furnace Replacement > 100K BTU — $63.81; Simple Online Permit — Residential Condenser Combo — $83.34; Non-simple mechanical projects (not specified in Table 3-C) — Varies — valuation-based per Table 3-A; Re-inspection Fee — $110.00 each. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for a mechanical / hvac permit in Unincorporated Clark County typically runs 1–14 business days. This is an estimate, not a published figure — confirm current review times with Clark County Building & Fire Prevention Department at (702) 455-3000.

You'll need: Mechanical Permit Application. See the required-documents checklist on this page for details on each.

Unincorporated Clark County requires 2 inspection(s) for a mechanical / hvac permit, in order: Mechanical Rough-In, Final. Schedule each through Clark County Building & Fire Prevention Department ((702) 455-3000).

Apply through Clark County Building & Fire Prevention Department at 4701 West Russell Road, Las Vegas, NV 89118. Phone: (702) 455-3000, email: pacenter@ClarkCountyNV.gov. Office hours: Mon–Thu 7:30 AM – 5:30 PM (closed Fri, Sat, Sun). Official information: https://www.clarkcountynv.gov/government/departments/building___fire_prevention/.

Unincorporated Clark County, Nevada has adopted: 2024 International Building Code (IBC) — effective January 11, 2026 (Clark County Building Department Notice to Industry); 2024 International Residential Code (IRC) — effective January 11, 2026; 2024 International Existing Building Code (IEBC) — effective January 11, 2026; 2024 International Energy Conservation Code (IECC) — effective January 11, 2026 (NRS 701.220 statewide floor; Clark County ≥100k pop., NRS 278.581 applies); 2024 International Swimming Pool and Spa Code (ISPSC) — effective January 11, 2026; 2024 International Fire Code (IFC) — effective January 11, 2026; Uniform Plumbing Code (UPC) — 2024 edition (SNBO jurisdictions use UPC, not IPC); Uniform Mechanical Code (UMC) — 2024 edition (SNBO jurisdictions use UMC, not IMC); 2023 National Electrical Code (NEC); 2009 ICC A117.1 — Accessible and Usable Buildings and Facilities. Local amendments apply — see the Unincorporated Clark County overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-16.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Unincorporated Clark County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

Other permits in Unincorporated Clark County

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Mechanical / HVAC Permit in other cities

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