Change of Use Permit & Occupancy Review
The service is matched to the actual project, municipality and information available before detailed permit documentation is finalized.
What does this service need to solve?
Ontario can require a change-of-use permit even when no construction is proposed if the new use increases hazard under the Building Code. Zoning permission and other applicable-law issues must also be considered separately.
Commercial and industrial permit drawings need to describe the actual existing and proposed use, layout, exiting, accessibility and affected building systems. A tenant plan alone is not necessarily a complete permit package.
What changes the scope of Change of Use Permit & Occupancy Review?
The same project name can require different drawings and approvals on different properties. These four checks help define the real permit problem before the set is developed too far.
Existing & proposed use
The current approved use and proposed occupancy can change zoning, life-safety and permit requirements.
Exiting & life safety
Travel paths, exits, fire separations and occupant-related requirements can shape the layout.
Accessibility
Barrier-free paths, entrances, washrooms and other accessibility requirements can affect the design.
Building systems
HVAC, plumbing, electrical/lighting, structural or fire-protection information may need separate coordination.
What the project package may need to communicate
The exact documents depend on the property, building, proposed work, municipality and professional scope. A coordinated set should explain the work clearly enough for the applicable review.
Existing / proposed layout
Identify suite boundaries, uses, partitions, doors, rooms and key dimensions.
Occupancy & life-safety notes
Document the permit information needed to explain exiting, separations and proposed use.
Accessibility information
Show relevant barrier-free paths, entrances, washrooms and clearances where applicable.
Building-system coordination
Coordinate affected HVAC, plumbing, lighting/electrical and other building systems.
Structural information
Address new openings, framing or loading changes through the appropriate responsible professional.
Permit / application documents
Coordinate the drawings and supporting municipal information included in the written scope.
Change of Use Permit & Occupancy Review: project-specific permit considerations
Change of use can require a permit even when construction is limited
The permit question is not only “Are walls moving?” A new use can change the Building Code requirements for occupant load, exits, fire separations, washrooms, accessibility or building systems. Zoning use should also be checked before a lease or renovation is treated as permit-ready.
What a change-of-use review can include
Depending on the proposed use and agreed scope, 828 Design can provide:
- review of available permit records and existing-use information
- existing/proposed floor plans and use/occupancy information
- assessment of exits, occupant load, fire/life-safety and accessibility conditions relevant to the proposed use
- identification of required building alterations before occupancy
- coordination of plumbing, HVAC/mechanical, structural and other permit information where applicable
- permit application support and response to municipal comments where included
What we compare before recommending a permit path
The key question is not simply whether the new tenant likes the space.
- recognized existing use versus proposed use
- zoning permission for the proposed business at the property
- occupant load, exits and life-safety implications
- barrier-free/accessibility and washroom requirements
- fire separations, alarms/sprinklers and other base-building systems
- whether the proposed use creates environmental, licensing or other applicable-law issues outside the building permit
A change of tenant is not always a change of use
Two different businesses can fall within the same general Building Code use, while two businesses that look similar to a customer can trigger different requirements. We do not label every lease turnover a change of use; we compare the actual recognized use and the proposed operation first.
Occupancy follows the approved use
Once the municipality has approved the required permit work and applicable inspections are complete, the premises should be occupied only in accordance with the approved use and permit conditions. Future material changes should be reviewed before they are implemented.
How the permit drawing service moves forward
A clear sequence helps separate feasibility, design, documentation and municipal review without implying that any approval result is guaranteed.
Property / Project Review
Review the address, proposed work or use, available drawings and the main zoning/permit questions.
Existing Information
Confirm the measurements, survey/base-building information, photographs or consultant inputs needed for the accepted scope.
Permit Documentation
Prepare and coordinate the drawings and supporting information included in the written service agreement.
Submission / Review
Support the agreed municipal submission or comments process; added revisions and new requirements are handled as separate scope where applicable.
What to send for a project review or quote
Good starting information helps identify the correct service and avoids guessing about the building or property.
- property address and unit number
- existing business/use if known
- clear description of the proposed new business and activities
- existing floor plans or prior permit drawings if available
- photos of entrances, exits, washrooms and the main tenant area
- any zoning review, city correspondence, business-licence request or permit history
The issued permit is the construction reference.
Contractors and owners remain responsible for construction, site safety, inspections and building in accordance with the issued permit documents. Material field changes should be reviewed before they are constructed because revised drawings, engineering or municipal approval may be required.
Connect the project to the right permit services
Use descriptive related-service links to move from the broad project question to the specific zoning, drawing or technical service that applies.
Zoning Review & Compliance Check
Property-specific review of zoning provisions that can affect use, setbacks, lot coverage, height, parking and project feasibility.
View related service →
Commercial Renovation & Tenant Improvement Permit Drawings
Permit drawings for commercial tenant improvements, renovations and qualifying interior alterations.
View related service →
Barrier-Free Accessibility Permit Drawings
Permit drawings for barrier-free washrooms, accessible routes and related accessibility upgrades.
View related service →
Restaurant, Café & Food-Service Permit Drawings
Permit design and coordination for restaurants, cafés, take-out, bakeries and other food-service projects.
View related service →Change of Use Permit & Occupancy Review questions
Short answers first, with project-specific limits stated clearly.
Do I need a change-of-use permit if I am not renovating?
Possibly. Ontario’s Building Code Act specifically provides for a change-of-use permit where the change would increase hazard even if no construction is proposed.
If zoning allows my business, does that mean I can occupy the unit?
Not necessarily. Zoning answers whether the use is permitted at the location; Building Code and other applicable-law requirements still need to be satisfied.
Can the existing washrooms and exits stay as they are?
Maybe, but the proposed use can change occupant load, accessibility, exit and plumbing requirements. Existing conditions have to be checked against the new use.
What if the city’s records do not clearly show the current use?
Permit records, prior drawings, property information and existing conditions may need to be reviewed before the new-use application can be defined.
Can a change of use trigger construction work?
Yes. The evaluation may identify upgrades needed for exits, accessibility, fire/life-safety, washrooms or other building systems before the new use can be occupied.
Should I do this review before signing the lease?
Where possible, yes. Early review can expose a use or upgrade issue before the tenant commits to a space that is expensive to convert.
What information should I send for a commercial permit quote?
Send the property and unit address, existing and proposed business use, a short scope description, landlord/base-building information if available, photos and any existing drawings or municipal comments.
Can the proposed business use change the permit requirements?
Yes. Use and occupancy can affect zoning, exiting, fire/life-safety, accessibility, washrooms and technical requirements even when the construction appears minor.
Request a permit drawing quote
Send the property or unit address and a short description of what exists and what you want to change. We will identify the information needed to review the requested scope.