CMHC's energy-scoring baseline switches to the 2020 building codes at the end of this month. Here's what actually changes, who it affects, and the honest version of "why you should start now."
Every builder in Toronto is currently using September 30 as a closing line. Some of that urgency is real and some of it is salesmanship, so let's separate the two.
MLI Select's energy-efficiency points — the pathway most small Toronto projects use to reach the 50 points that unlock 95% financing and 40-year amortization — are scored against a building-code baseline. Since the program launched, projects could qualify against the older 2015 code editions. That transition window closes September 30, 2026: after it, new applications are measured against the 2020 National Building Code and NECB baselines.
A tougher baseline means the same physical building scores fewer points — or needs more insulation, better mechanical systems and tighter air-sealing to score the same. Either way, the cost of reaching 50 points goes up. Not catastrophically — well-designed multiplexes were already being built near the new bar — but real money: think upgraded envelope details, mechanical spec, and modelling effort.
The honest version of the urgency: a CMHC application needs drawings, an energy model, verified rents and a lender package — realistically 6–10 weeks of work before anything can be filed. The deadline that matters to you isn't September 30. It's the day you'd have to start design to make September 30. For most projects, that day has already passed or is this week — which is the true reason every serious builder has been pushing clients to engage since summer.
Don't let a program deadline rush you into a bad project — a lot that doesn't work today still won't work under the old baseline. But if your project already pencils and you've been sitting on the decision, the transition is a real, quantifiable cost of waiting: the same building, filed six weeks apart, can carry meaningfully different energy-compliance costs. Ask whoever is preparing your application one question: "which baseline will my file be scored against, and what does the answer cost me?" If they can't answer precisely, that's your real red flag.
We'll give you the straight answer on timing, feasibility and what filing this month would actually take.
Get a Site ReadProgram mechanics as understood September 2026; CMHC administers the transition and its rules govern. Planning guidance, not financial advice.