Know what matters
Know what applies to your project.
Check the conditions below before you finalize the scope. Every answer connects to an official source.
The City’s guidance covers self-contained units within a house, within an addition and in an accessory building. Confirm that the address and design can support the proposed unit.
Source · City of Greater Sudbury
Source · City of Greater Sudbury
Make a start
Your preparation checklist
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Plan ahead
Fees and timing
Review timeline
Confirm the current municipal service standard.
Permit fees
Greater Sudbury adjusts its fees annually. Ask Building Services to confirm the current fee for your application.
From reading to doing
Your next steps.
Follow the practical steps in the published Greater Sudbury guide. Confirm unresolved details with the City before committing to work.
Confirm whether the unit is internal, attached or detached.
Check the municipal requirements for your address and project scope.
If a permit is required, submit it through Pronto and wait for issuance before starting work.
Trace the evidence
Official sources behind this guide.
These are the source documents linked in the rules above. Check the municipal authority for current requirements before submitting a project.
- City of Greater Sudbury
Permit Application Types
Source checked Nov 7, 2026
- City of Greater Sudbury
Building Permit Fees
Source checked Nov 7, 2026
A little more clarity
Common questions.
Where do I apply in Greater Sudbury?
Start with Pronto. The linked municipal guidance describes which project category and documents to use.
Know the approval terms
A second unit can meet one rule and still need another approval.
Building permits, zoning and applicable law are separate parts of the approval path.
Building permit
A municipal approval required before certain construction, alteration, demolition or change-of-use work can proceed. The permit review checks the proposed work against the Ontario Building Code, local zoning and other applicable law.
Zoning by-law
A municipal rule set that controls how land and buildings may be used and developed, including matters such as permitted uses, setbacks, height, lot coverage and other site-specific standards.
Applicable law
Requirements outside the Ontario Building Code that must be satisfied before a building permit can be issued when the Building Code identifies them as applicable law.
Same project, different city
See how this rule changes across Ontario.
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