The decision behind the detail
Markham provides a building-permit process guide. Prepare the room, wall and service changes clearly so the City and design professionals can identify the appropriate documents and reviews.
A useful checklist
- List proposed alterations
- Gather existing drawings
- Identify design responsibility
Bring it into the project brief
Use current official guidance for the actual proposal. A decorative room update and a structural change need different preparation.
For the related scope, see room-by-room renovations. Keep the relevant measurements, selections and open questions together before requesting a written quote.

Illustrative reference for discussing the scope.