The Building Permit is typically applied for and held by the tenant or their general contractor, as the party making changes to the space. If the work touches base building systems, the building owner may also need to be involved in or consent to the permit application.

Yes. Any plumbing work requiring a permit must comply with the OBC version in effect when the permit is issued. A change of use can trigger additional requirements — including updated fixture counts, accessibility standards, and backflow prevention — beyond the specific work being performed.

Base building plumbing is the shared building infrastructure (main water service, shared drain stacks, mechanical rooms). TI plumbing is within the tenant's demised space — branch lines, fixtures, dedicated water heaters, and grease interceptors. Responsibility for each is set by the lease.

Typically an underground inspection (if below-slab work is done), a rough-in inspection before walls are closed, and a final inspection after fixtures are installed. All piping must be pressure-tested before the rough-in inspection.

Yes. Adding fixtures, relocating existing fixtures, or modifying drain or vent lines requires a Building Permit. Food service tenants adding commercial kitchens must also comply with Ontario Regulation 493/17 and may need municipal pre-approval of grease interceptor sizing.

Review base building mechanical drawings, confirm drain stack locations and water pressure, obtain written landlord approval before any base building connections, provide advance notice for water shutdowns, and deliver as-built drawings at project closeout.

As-built drawings document the actual installed location of pipes, valves, and equipment. They are important for future maintenance, permit closeout, and transfer of the space to a future tenant. Many landlords require them as a lease condition for significant plumbing modifications.

Yes, food service tenants typically install their own grease interceptor as part of their TI, subject to landlord approval and municipal sewer-use bylaw requirements. The size and location must be approved by the municipality, and the tenant is responsible for ongoing maintenance and pump-outs.