When you are looking to buy, sell, or lease a commercial property, especially if you’re buying a business, on Vancouver Island, the excitement of a new venture can easily overshadow the complex world of municipal red tape. One of the most common surprises for business owners in our local market is the “Change of Use” permit, which is technically referred to by municipalities as a Change of Occupancy.
This topic is a major pain point for local business owners in different municipalities across Vancouver Island, including right here in Nanaimo. Many entrepreneurs assume that if a building is currently open and operating safely, they can easily move in and start their new business. Unfortunately, that is not always how municipal regulations work. The moment your business activities differ from the previous tenant’s activities, a regulatory domino effect begins.
What Exactly Is a Change of Use Permit?

A Change of Use permit is a type of building permit required when a commercial space transitions from one classification under the building code to another.
If you take a commercial unit that was previously used as a professional accounting office and decide to open a retail clothing store, you are changing the occupancy classification from business and personal services to mercantile. Even if you do not plan to swing a single hammer or tear down any walls, the City of Nanaimo still requires a Building Permit to approve this transition.
Why Existing Buildings Must Be Brought Up to Code
The biggest source of frustration for local business owners is the realization that they cannot simply grandfather in the existing building. Under the
The logic of the municipality is that a change in use presents a different level of risk. While the building may have been perfectly fine and compliant under its previous use, the new use triggers the modern version of the building code. This means you may be on the hook for major building upgrades, including:
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Seismic and Earthquake Upgrades: Old brick or wood structures may require structural reinforcing to meet modern lateral load standards.
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Electrical Systems: Upgrading from low-demand office use to retail or restaurant use often requires a brand new electrical panel and wiring upgrades to handle the higher electrical load safely.
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Fire and Life Safety: You might be required to install modern fire suppression sprinklers, fire alarms, or additional emergency exit doors.
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Accessibility Standards: The city often requires renovations to washrooms and entryways to ensure they are fully accessible to individuals with disabilities.
Real World Realities: The Unexpected Roof Upgrade
To understand how high the financial stakes can be, look at a scenario that plays out far too often in downtown Nanaimo. A business owner was working with an office space and wanted to convert it into a retail shop. It was located in an older, character building in the downtown core.
Even though the roof of the building was only two years old and in perfectly fine condition for the office, the shift to a retail occupancy classification triggered a full structural review. Under the newest engineering codes, the structural load limits for the roof did not meet the exact standards required for the new retail classification. Because the building code changed since the roof was installed, the business was faced with a massive, unexpected engineering expense before they could even open their doors to the public. This is why thorough due diligence is vital before finalizing any commercial lease or purchase.
How the City of Nanaimo Handles Commercial Changes
The
To start the process, you must submit a formal Building Permit application along with detailed architectural drawings, a code compliance review, and often reports from registered professionals such as structural or electrical engineers.
So How Long Does It Take?
While municipal guidelines often state that approval can take a few weeks to a few months, real-world experience paints a very different picture. In practice, securing a Change of Use permit in Nanaimo takes a minimum of three months in the vast majority of cases.
When advising clients on business acquisitions or lease negotiations, we always recommend accounting for a realistic timeline of at least six months from start to finish once all documentation is submitted.
The typical permit timeline depends on several factors:
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Standard Commercial Permits: A typical alteration permit that requires professional coordination (architects and engineers) usually takes between six to twelve weeks to be reviewed and issued.
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The Fast Track Program: Nanaimo does offer a Fast Track Building Permit program to speed up processing times for simple tenant improvements.
However, the city explicitly excludes Change of Use permits from being considered for the Fast Track program. If you are altering the occupancy type of a space, you must go through the standard, thorough review process. -
The Back-and-Forth Delay: The most common reason for lengthy delays is incomplete applications. If the city’s building officials have to send your plans back to your designer for corrections or additional engineering schedules, your application goes back to the bottom of the review pile.
Key Takeaways for Commercial Buyers and Sellers
If you are buying an existing business, looking to lease a commercial retail unit, or selling your property, you need to protect yourself from these hidden regulatory traps. It’s worth reviewing these questions to ask before buying a business.
First, never assume that the current layout of a business is legally conforming. Work with a commercial broker to verify the registered occupancy classification with the city before signing a lease or subject removal. Second, always include a subject-to-permit clause in your commercial purchase agreement or lease. This clause ensures that if the City of Nanaimo demands cost-prohibitive upgrades to grant your Change of Use permit, you can walk away from the deal without losing your deposit.
By taking a proactive, cautious approach and consulting with building professionals early, you can navigate Nanaimo’s permit landscape successfully and keep your business plans on track.
Have you experienced this?
Change of use requirements can catch even experienced business owners by surprise. We recently worked with someone who wanted to convert a retail space into an office, only to discover the project triggered a new round of building code reviews. Even though the roof was relatively new, it had been built to older standards using double nailing instead of the current triple nail requirements, and seismic upgrades also became part of the discussion.
Have you experienced something similar when buying, leasing, or renovating a commercial property in Nanaimo? We’d love to hear your story and how the process went for you.









