Site & Design | Toronto Green Standard

The Toronto Green Standard and the As-of-Right Multiplex

The Toronto Green Standard sets sustainability requirements for new development, with a mandatory Tier 1. The detail that matters for small infill is how it attaches: TGS is applied through the planning-approval process. So the real question for a multiplex is whether your project has a planning application for TGS to hook onto — and an as-of-right build on a building permit alone usually does not.

Key Takeaways

✓Tier 1 is mandatory, but applied through the planning-approval process (Site Plan Approval).
✓The low-rise V4 standard (under four storeys) took effect May 1, 2022.
✓An as-of-right multiplex on a building permit alone generally would not be pulled into TGS.
✓That last point is a reasoned inference — confirm with City Planning for your project.

How TGS Connects to a Multiplex

TGS applies through planning approval

Tier 1 of the Toronto Green Standard is mandatory, but it is applied through the planning-approval process — most directly Site Plan Approval. The hook for TGS is a planning application, not a building permit on its own.

There is a low-rise version

For low-rise buildings under four storeys, the City maintains a dedicated TGS version. The current low-rise standard (Version 4) took effect on May 1, 2022, and is the one a small multiplex would be measured against if TGS applied.

An as-of-right multiplex usually skips the planning stream

A compliant multiplex on a building permit alone has no rezoning, no Official Plan amendment, and no Site Plan Approval. Because TGS attaches through that planning process, a permit-only multiplex generally would not be pulled into TGS. We present that as a reasoned inference — confirm it with City Planning for your project.

Read This Before You Rely On It

The published facts are clear: Tier 1 of the Toronto Green Standard is mandatory, it is applied through the planning-approval process, and the low-rise Version 4 standard took effect May 1, 2022. What is an inference — our reading, not a quoted City rule — is the conclusion that an as-of-right multiplex built on a building permit alone, with no Site Plan Approval, would not be pulled into TGS.

The logic is straightforward: if TGS attaches through a planning application, and your project has no planning application, there is nothing for it to attach to. But applicability can be project-specific, and the City can change how the standard is administered. Before you treat TGS as not applying to your multiplex, confirm it with City Planning for your exact approval path.

Best For

✓ As-of-right multiplexes on a building permit alone, where TGS likely does not attach.
✓ Owners who confirm the TGS trigger with City Planning before scoping the design.
✓ Projects that adopt efficiency measures voluntarily for operating cost and rentability.

Usually Fails When

✕ A project assumes TGS never applies, then a Site Plan Approval pulls it into Tier 1.
✕ The inference on this page is treated as a published exemption rather than a reasoned read.
✕ The low-rise V4 standard is missed on a project that does require a planning application.

What To Verify Before Spending Money

→ Whether your approval path includes a planning application that carries TGS.
→ With City Planning, whether Tier 1 applies to your specific multiplex.
→ Which TGS version (low-rise V4) your building would be measured against if it applies.

Where to Go Next

Permit Process

Building permit vs the planning-application stream.

Built-Form Envelope

The height, coverage, and setback box.

What Drives Cost

Where green measures land in the budget.

Frequently Asked Questions

Does the Toronto Green Standard apply to a fourplex? +

It depends on the approval path. The Toronto Green Standard is applied through the planning-approval process — Site Plan Approval in particular. An as-of-right fourplex that goes straight to a building permit, with no rezoning and no Site Plan Approval, generally would not be pulled into TGS, because there is no planning application for it to attach to. We flag that as a reasoned inference rather than a published rule, so confirm it with City Planning before relying on it for a specific project.

Is the Toronto Green Standard mandatory? +

Tier 1 of the Toronto Green Standard is mandatory, but the mechanism that makes it mandatory is the planning-approval process. A development that requires a planning application — for example one going through Site Plan Approval — must meet Tier 1. A project that needs no planning application does not have that same hook, which is why an as-of-right multiplex on a building permit is a different case. Confirm the current applicability with the City.

What is the low-rise version of TGS? +

The City maintains a separate Toronto Green Standard for low-rise buildings under four storeys. The current low-rise standard, Version 4, took effect May 1, 2022. A small multiplex sits in the low-rise range, so if TGS did apply to a particular project, this is the version it would be measured against.

If my multiplex needs a variance, does that pull it into TGS? +

A minor variance from the Committee of Adjustment is not the same as Site Plan Approval, but the cleanest answer is to confirm the trigger directly. The Toronto Green Standard attaches through the planning-approval process, so the question is whether your specific approval path includes a planning application that carries TGS. Ask City Planning what applies to your project rather than assuming either way.

Should I build to TGS even if it is not required? +

That is a business decision, not a regulatory one. Even where TGS is not triggered, many of its measures — efficiency, stormwater handling, better building envelope — can pay off in operating cost and rentability. Treat it as a menu you can choose from on a permit-only multiplex, and confirm with the City whether any of it is actually mandatory for your approval path.