What happens if I do renovation work without a permit in New Brunswick?

Renovating without a required permit in New Brunswick can lead to serious legal, financial, and safety consequences that often cost far more than the original permit fees.

Immediate Legal Consequences
If municipal building inspectors or Regional Service Commission (RSC) officials discover unpermitted work, they can issue a stop-work order immediately halting your project. You'll face penalty fees on top of the original permit cost — typically 2-3 times the standard fee. In incorporated areas like Moncton, Saint John, or Fredericton, municipal bylaw officers have authority to investigate complaints and issue violations. In rural areas, your RSC handles enforcement.

For electrical, plumbing, or gas work done without proper permits, NB Department of Justice and Public Safety — Technical Inspection Services (TIS) can impose additional penalties. Since all electrical work requires both an NB Power wiring permit (1-800-615-0522) and TIS inspection, unpermitted electrical work triggers a special inspection fee plus the original permit cost. The same applies to plumbing and gas installations — TIS requires permits and inspections for all new or modified systems.

Insurance and Liability Risks
Your home insurance may deny claims related to unpermitted work, even if the work itself didn't cause the damage. Insurance companies can argue that unpermitted modifications created unknown risks. If someone is injured during unpermitted work, you could face personal liability since the work wasn't inspected for code compliance.

Real Estate Complications
When selling your home, unpermitted work creates major headaches. Buyers' home inspectors will flag obvious unpermitted additions or modifications. You may need to obtain retroactive permits and bring work up to current National Building Code 2020 standards (effective May 1, 2025 for new applications in NB) — often requiring expensive upgrades to meet today's energy efficiency and safety requirements. Some buyers will simply walk away rather than deal with permit issues.

WorkSafeNB Considerations
If you hire contractors for unpermitted work and they're injured, you could be liable for WorkSafeNB coverage if the contractor isn't properly registered. Always verify contractor coverage at worksafenb.ca or 1-800-999-9775 before starting any work.

The Smart Approach
Permit fees in New Brunswick typically range from $500-$8,000+ depending on project scope — a fraction of potential penalty costs. Contact your municipality (if in an incorporated area) or Regional Service Commission (if rural) early in your planning process. Most building officials are happy to discuss permit requirements and help you understand what work needs permits versus what you can tackle as DIY projects.

Remember, permits aren't just bureaucracy — they ensure your renovation meets safety standards and protects your family and investment.

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