A change of use project can look simple at first, but it may require careful review of the building systems. When the use of a space changes, the mechanical, plumbing, fire protection, and electrical requirements may also change.

For example, changing a retail unit into a restaurant, an office into a clinic, or an industrial unit into a different business use may create new design requirements.

At RN Engineering, we support change of use and renovation projects across Ontario with mechanical and electrical permit drawings.

What Is a Change of Use?

A change of use happens when a space is being used for a different purpose than before. Even if there is little or no construction, the new use may affect building code requirements, occupant load, ventilation, plumbing fixtures, fire protection, and electrical needs.

Examples include:
- Retail to restaurant
- Office to medical clinic
- Office to dental clinic
- Warehouse to commercial use
- Industrial unit to storage use
- Retail to hair salon
- Commercial unit to fitness studio
- Existing unit to food preparation space

Why Mechanical and Electrical Review Matters

A change of use can affect many building systems. The existing systems may not be suitable for the new use, or additional drawings may be required for permit submission.

Items that may need review include:
- HVAC capacity
- Ventilation requirements
- Exhaust requirements
- Plumbing fixture requirements
- Drainage system
- Fire protection system
- Electrical load
- Lighting and emergency lighting
- Fire alarm coordination

How RN Engineering Can Help

RN Engineering prepares mechanical and electrical drawings for change of use, renovation, and tenant fit-out projects across Ontario.

Our services include:
- HVAC design
- Plumbing & drainage design
- Fire protection design
- Electrical design
- Site review when required
- Permit comment responses
- Permit and construction drawings

Need Help With a Change of Use Permit?

If you are planning a change of use project in Ontario, RN Engineering can help review the mechanical and electrical requirements and prepare the required drawings.

You can get a quote by visiting www.rnengineering.ca and filling out our form, or sending a WhatsApp message / calling 437-427-0102.