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Buying & Selling a Business

What happens if my zoning doesn't actually match what the business is doing?

TSL Written by the Treadstone Law team· Updated August 2026

This is a serious issue to uncover before, rather than after, a sale, since zoning is a municipal bylaw matter separate from your lease or your business licence, and a mismatch can mean the business has effectively been operating without proper authorization, regardless of how long that's gone unnoticed. Zoning bylaws designate what uses are permitted on a given property, and municipalities can, and sometimes do, enforce against a non-conforming use once it comes to their attention — which a sale, an ownership change, or a licence re-application can sometimes prompt.

A buyer performing proper due diligence should be checking zoning compliance directly with the municipality rather than relying on the fact that the business has operated a certain way for years without incident, since a history of non-enforcement is not the same as compliance, and enforcement can be triggered later.

If you discover a mismatch before selling, address it — through a legal non-conforming use argument, a variance application, or another route — rather than letting your buyer discover it during their own diligence. A Treadstone business lawyer can help assess your options.

Key takeaways

  • Zoning compliance is separate from your lease and licences, and gaps can go unnoticed for years.
  • A sale or licence re-application can prompt a municipality to look at zoning more closely.
  • Longstanding non-enforcement is not the same as actual zoning compliance.
  • Address a known zoning mismatch proactively rather than letting the buyer discover it later.
This is general information, not legal advice. It doesn’t create a lawyer–client relationship, and the rules can change. For advice on your situation, a Treadstone business lawyer can help.
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