Building permits in Union County — the fast-growing southeastern Charlotte-metro county seated in Monroe — are issued by Union County Building Code Enforcement, which has authority to issue building permits in all parts of the county except the City of Monroe and the Town of Waxhaw. Applications are filed through the Evolve portal.
This Union County building permit guide covers what requires a permit, how fees work, the Evolve process, trade permits, and inspections — so your Union County project starts clean.
Union County Building Code Enforcement issues building permits countywide except in Monroe and Waxhaw, which run their own. For unincorporated areas, the county handles both zoning (under the Union County Development Ordinance) and building. An application becomes a permit only when validated with a permit number and zoning approval.
What requires a building permit in Union County?
Under the North Carolina State Building Code (and N.C.G.S. 160D-1110, which requires permits for most construction), a permit is required before you construct, reconstruct, alter, repair, move, demolish, or change the occupancy of most structures and systems. Common triggers include:
Permit required
- New construction, additions, and renovations
- Structural / load-bearing alterations and demolition
- Reroofing, windows, doors, and exterior changes
- Electrical service changes and most wiring alterations
- Mechanical / HVAC installations and changeouts
- Plumbing alterations, repipes, and water heaters
- Decks, accessory structures, and signs
- Change of occupancy or use
Typically exempt
- Painting, flooring, cabinetry, and cosmetic work
- Like-for-like water-heater swaps (no change in fuel, source, location, capacity, or venting/piping)
- Repair/replacement of electrical devices and fixtures of the same type
- Minor alterations under $15,000 not involving the above
Exemptions are narrow and scope-specific. When unsure, confirm with the building department before starting — see the penalty note below.
Get the permit issued before starting work. Building without one exposes the owner to penalties and stop-work orders. The application becomes a permit only once it is validated with a permit number and zoning approval.
Who handles permitting in Union County?
Permitting and inspections run through Building Code Enforcement; the Zoning Administrator enforces the Union County Development Ordinance (use, setbacks, floodplain) for unincorporated areas and participates in commercial plan review. Union County Environmental Health handles well and septic.
| Detail | Information |
|---|---|
| Office | 500 N. Main Street, Monroe, NC 28112 (Building Code Enf. Ste 47; Planning Ste 70) |
| Phone | 704-283-3500 (Government Center) |
| Online portal | Evolve (account required) — or submit in person |
| Authority | Countywide except the City of Monroe and Town of Waxhaw |
| Residential fee | Based on square footage (heated and/or unheated) |
| Enforced code | NC State Building Code + Union County Development Ordinance |
Apply through Evolve. Create an account and submit the building permit package through the portal or in person; include zoning approval, an accessibility letter (water/sewer availability) or a well and septic permit/waiver from Environmental Health, and lien-agent/workers'-compensation information where applicable. Commercial submittals follow the Union County Commercial Plan Review Submittal Requirements.
Union County building permit cost
Union County residential building permit fees are based on square footage (heated and/or unheated) per the county fee schedule, with separate trade permit fees.
There is no additional fee for the first re-check of a failed inspection; if a job fails a second time, an $80 trip charge may apply before further inspections. Confirm current amounts before budgeting.
| Fee component | How it works |
|---|---|
| Residential building fee | Based on square footage (heated/unheated) |
| Trade permits (E / P / M) | Charged separately per trade |
| First re-check | No additional fee |
| Second failure | $80 trip charge before further inspections |
| Lien agent | Designate via LiensNC for projects $30,000+ |
| Work-without-permit | Penalties and possible stop-work orders |
Want a precise number for a specific Union County project? Send us the scope and valuation and we'll return a fee estimate alongside a filing timeline.
Union County trade permits
Electrical, plumbing, and mechanical work needs its own permit and a North Carolina-licensed contractor, filed in Evolve.
Electrical permits
Required for service upgrades, panels, solar PV, and most wiring, performed by a NC-licensed electrical contractor (same-type device/fixture replacement may be exempt).
Plumbing permits
Required for new plumbing, repipes, water heaters, fixtures, and gas piping; like-for-like water-heater swaps with no change in fuel, source, location, capacity, or venting/piping may be exempt. Performed by a NC-licensed plumbing contractor.
Mechanical (HVAC) permits
Required for HVAC changeouts, ductwork, and refrigeration, performed by a NC-licensed contractor. Specialized systems are permitted and inspected separately.
Miscellaneous & specialty
Reroofs, decks, accessory structures, and signs are permitted separately. Projects needing a line extension follow the Union County Water and Sewer Extension Ordinance, and a Special Use Permit requires a Land Use Permit Application and site plans for the Zoning Administrator.
Verify your contractor's license. North Carolina requires a state General Contractor license from the NC Licensing Board for General Contractors for projects costing $40,000 or more, plus separate state licenses for electrical (NC Board of Examiners of Electrical Contractors) and plumbing/heating (NC State Board of Examiners of Plumbing, Heating & Fire Sprinkler Contractors). Verify before signing. The property owner is responsible for ensuring a permit is obtained.
How to get a building permit in Union County
Confirm jurisdiction & zoning
Confirm the parcel is in Union County's permitting authority (not Monroe or Waxhaw) and determine zoning/development requirements with Planning.
Prepare your documents
Assemble the application, plans, zoning approval, accessibility letter or well/septic permit, and lien-agent/workers'-comp info; designate a lien agent via LiensNC for projects $30,000+.
Submit in Evolve
File the building permit package through Evolve or in person.
Review & validation
Building Code Enforcement and the Zoning Administrator review; the application becomes a permit once validated with a permit number and zoning approval.
Pay fees & pull the permit
Pay the square-footage-based fees, then post the permit on site.
Schedule inspections through close-out
Schedule inspections in Evolve or by phone (often completed the day requested). Clear all required inspections to obtain your Certificate of Occupancy.
Inspections in Union County
Schedule inspections in Evolve or by phone; the county says inspections are typically completed the day requested when workload allows. Typical checkpoints include footing/foundation, rough-in MEP, framing, insulation, and final. The contractor of record is notified of results.
Corrections to a failed inspection should be made before requesting a re-inspection — the first re-check is free, but a second failure may carry an $80 trip charge that must be paid before further inspections.
Official Union County permitting resources
- 🏛️ Union County Building Code Enforcement
- 💻 Permits & Evolve portal
- 📋 Residential permit requirements
- 🪪 NC Licensing Board for General Contractors
- 📘 NC OSFM — State Building Codes
- 🗺️ Development Services & zoning
Simplify Union County permitting with Alliance Permitting
Union County's broad countywide authority, Evolve intake, and zoning-validation requirement reward applicants who line up zoning approval and submit complete packages. Alliance Permitting is a permit expediter for Union County — our permit expediting services pair AI-driven document review with experts who know the Building Code Enforcement and Evolve process, so your Union County submissions move faster.
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Contractors and builders choose Alliance for Union County because we deliver:
- Local expertise — we know Union County Building Code Enforcement, the Evolve portal, and the county's countywide authority.
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- Error-free submissions — AI pre-checks plus expert review catch issues before they become correction cycles.
Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the building department through issuance — including preparing private-provider documentation where that option is available. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
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More North Carolina permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of June 2026. Permit requirements, fees, and processes change; always confirm current details with Union County Building Code Enforcement before filing. This is not legal advice.