Building Permit Drawings in Toronto
Have a sketch, older permit set, landlord plan or City comments? iPermit helps determine what can be reused, what needs verification and what drawings are required for the current permit scope.
Residential and commercial drawing packages should be built around the actual project, not a fixed checklist.
Are the Drawings You Already Have Enough for a Building Permit?
Sometimes. A rough sketch, older permit set, landlord plan or existing City submission can all be useful starting points, but none should be treated as permit-ready until the information is checked against the current property, proposed work and municipal requirements.
Existing documents may be reusable when the dimensions, uses, structural conditions and relevant site information still match the property. Where they do not, measurements, verification or updated drawings may be needed before the new permit set is developed.
Ready to Define Permit Path?
Send project context first, the next step can then focus on scope, information gaps and the right page or service route.
A Permit Drawing Set Is Only as Reliable as Its Starting Information
Permit drawings must reflect the actual property and existing conditions. Key dimensions, wall locations, openings, structural conditions, and survey information may need to be verified before design begins.
iPermit reviews the available information first and identifies only what needs to be confirmed for an accurate, permit-ready drawing set.
Who Can Take Responsibility for Building Permit Drawings in Ontario?
There is no universal stamp or credential that automatically covers every part of a building permit package. Responsibility depends on the building, the design activity and the professional scope involved.
| Role | Typical responsibility |
|---|---|
| Property owner | An owner may prepare drawings where an applicable exemption allows it and they have the knowledge needed to prepare the required information. The submission still has to meet the municipality’s review requirements. |
| Qualified designer / BCIN | A qualified designer may take responsibility for design activities that fall within the applicable Ontario qualification and registration categories. A BCIN should not be treated as a universal credential for every building or discipline. |
| Architect | An architect may take professional responsibility for architectural work within the applicable Ontario licensing framework and project scope. |
| Professional engineer | A Professional Engineer takes responsibility for engineering content within the defined engineering scope. Engineering responsibility does not automatically extend to every other part of the permit package. |
The project should establish who is responsible for each design component before the final permit documents are issued.
How a Coordinated Permit Drawing Set Comes Together
The process should follow the project, not a fixed drawing template. The goal is to establish dependable existing information, develop one current design and coordinate only the disciplines the project actually requires.
Define project and permit scope
Confirm the property, existing use, proposed work, project stage and approval path before detailed drafting begins.
Establish dependable existing conditions
Review surveys, old drawings, photos and sketches, then identify what needs measurement, verification or clarification.
Develop the proposed work
Translate the intended renovation, addition, commercial layout or other project into a clear proposed design.
Bring in required disciplines
Confirm structural, HVAC, plumbing or other technical responsibility when needed and align it with the current design.
Coordinate and quality-check the set
Review sheet-to-sheet consistency, dimensions, names, openings, details and consultant interfaces before issue.
Prepare the agreed permit drawing set
Issue the current package and identify whether the next step is submission or resolution of another requirement.
Ready to Define Permit Path?
Send project context first, the next step can then focus on scope, information gaps and the right page or service route.
What a Building Permit Drawing Set Needs to Communicate
Existing and proposed conditions
The reviewer needs to understand what is there now and what will change. Depending on the scope, that can mean existing and proposed floor plans, demolition information, new partitions, openings, stairs, fixtures, room uses or other affected construction.Dimensions and use of space
Permit drawings should be dimensioned clearly enough to review the proposed work. Room uses, building areas, clearances, openings, heights and other project-specific dimensions can affect the design and review.Site and zoning context
Where the project affects the building footprint, exterior openings, parking, setbacks, accessory structures or other site conditions, site information may become part of the package. If the project still has an upstream feasibility question, use Zoning Review before assuming the issue can be solved inside the permit drawings.Elevations, sections and construction information
Floor plans alone do not always explain how proposed construction works vertically or how assemblies are built. Elevations, building sections and construction details may be needed to show heights, grades, stairs, guards, wall, floor and roof assemblies, exterior openings or other conditions relevant to the work.Code and life-safety information
Commercial projects and more involved residential projects may need additional information about occupancy, fire separations, exiting, accessibility or other Building Code matters. The information should match the actual building and proposed use rather than being copied from a generic notes sheet.Structural, HVAC, plumbing and other disciplines
When the work affects structure or building systems, the architectural set has to coordinate with the applicable technical information. Not every project requires every discipline. When another designer or consultant is involved, their responsibility remains distinct even though the documents need to describe the same current project.One current revision across the set
A common problem is different documents describing different versions of the project. A wall moves on the architectural plan but not on the structural drawing. A washroom layout changes after plumbing information was prepared. A commercial room is renamed after mechanical assumptions were established. The set should be checked as one coordinated submission, not as a folder of unrelated PDFs.Permit drawings are not automatically construction or shop drawings
Permit drawings are prepared to communicate the work required for regulatory review. Depending on the project and contract, the builder may still need fabrication details, shop drawings, product submittals, tender information or construction-stage instructions beyond the permit set. The scope should state what is being prepared so “permit drawings” is not mistaken for every document needed to price, fabricate and build every component.For project-specific permit paths, see Residential Building Permits or Commercial Building Permits.
Drawings Complete Does Not Always Mean the Permit Application Is Complete
A coordinated drawing set is central to the permit application, but Toronto Building also reviews application readiness beyond the drawings themselves.
| Application component | What to confirm |
|---|---|
| Permit drawings | The current plans and specifications need to describe the proposed work consistently and include the project-specific information required for review. |
| Zoning & Applicable Law | Toronto’s current regular review streams use an issued Zoning Applicable Law Certificate and confirmation of applicable-law requirements as part of a complete application. |
| Forms, signatures & fees | The drawing set does not replace the required application forms, owner or authorized-agent signatures, designer information or municipal fees. |
| Engineering & consultant documents | Structural, mechanical, plumbing, energy, grading or other technical documents need to be included and coordinated when the project requires them. |
The exact submission requirements should still be checked for the actual project, municipality and review stream before the file is treated as application-ready.
Taking Over a Permit File With Municipal Comments
A municipal comment letter is important, but it is not the whole file.
Before iPermit can determine whether it should revise an existing drawing package, we need to understand what the municipality actually reviewed. That normally means the complete submitted drawings, forms and consultant documents, the current comment or deficiency letter, earlier responses if any, and the application number or relevant correspondence.
Professional responsibility also has to be clear. A drawing prepared and signed by another designer, architect or engineer cannot simply be treated as iPermit’s work because the client wants a new stamp or a faster response.
After the file is reviewed, the next step may be a limited correction, an additional document, coordination with the original consultant, recreation of part of the package under a new scope, or an earlier zoning/scope decision that drafting alone cannot solve.
The objective is to understand the file before promising a revision path.
What to Send for a Building Permit Drawing Review
You do not need a complete permit package to start. Begin with the property address and municipality, the current use of the property and a short description of what you want to build, remove, alter or use differently.
Send whatever drawings or records you already have, including previous permit drawings, sketches, landlord plans or concept drawings. Current photos can also help establish whether the available plans still reflect the property.
If the project affects the building footprint, setbacks or other site conditions, include any survey or reliable site information available.
If the application has already been submitted, send the application information, complete submitted package and current municipal comments. The initial review can identify what is reusable, what needs verification and what information is still missing.
Building Permit Drawing FAQs
These questions address drawing scope, designer responsibility, existing plans and application readiness before you commit to a permit-drawing assignment.
What are building permit drawings?
Building permit drawings are the plans and design documents used to describe proposed construction for municipal review. Depending on the project, they can include existing and proposed floor plans, site plans, elevations, sections, construction details and information from other design disciplines. The exact set should be based on the work being permitted rather than a generic package list.
What drawings are required for a Toronto building permit?
Toronto publishes different application guides for different project types. A small residential alteration may need a different set from an addition, new house or commercial renovation. Common documents can include floor plans, site information, sections, elevations and construction details, with structural, HVAC, plumbing or other information added where applicable.
Do I need a BCIN designer for permit drawings in Toronto?
It depends on who is preparing the design and what design activity is involved. Ontario has qualification and registration rules for qualified designers, with different categories for different types of work. Architects and professional engineers operate under separate professional licensing regimes, and certain owner-prepared designs may qualify for exemptions. The responsible person and required qualification should be confirmed for the actual project.
Can an architect or professional engineer prepare permit drawings instead of a BCIN designer?
Architects and professional engineers may prepare design documents within their professional scope under their respective Ontario licensing frameworks. The right professional involvement depends on the building, design activity and project requirements. An engineer responsible for structural work, for example, is not automatically responsible for every architectural or mechanical part of the project.
Can a homeowner prepare their own permit drawings?
Ontario and Toronto guidance recognizes circumstances where a property owner may prepare their own drawings or claim an applicable qualification or registration exemption. The submission still has to communicate the project clearly and contain the information required for review. More complex design, structural or building-system work may still require professional input.
Can iPermit work from a contractor sketch or old plans?
Often, yes — as a starting point. The documents need to be checked against the current property and proposed work before they are relied on. If dimensions, construction or previous alterations are uncertain, additional verification may be required before the new permit drawings are prepared.