Turn-Key Compliance - Simplified
Montreal By-law 21-042 Compliance
By-law concerning the disclosure and transmission of information on
energy consumption and greenhouse gas emissions of large buildings.
Who Does it Apply to?
- Buildings ≥ 2,000 m² (21,528 ft²)
- Owners must report annual energy consumption and greenhouse gas emissions
- Compliance is mandatory for commercial and institutional properties
Deadline to Comply is June 30th
A Simplified Process to Compliance
Avoid the Headache, Save Time, and Stay Focused on Your Business

By partnering with ZenithNet-Zero, compliance with By-law 21-042 becomes a seamless process. By allowing ZenithNet-Zero to handle the administrative burden, building owners and commercial real estate entities can focus on their core business, confident they will meet the June 30th deadline, avoiding penalties.
Instead of diverting your valuable time and resources, let ZenithNet-Zero take care of everything. Our team handles the entire compliance process—from data collection to submission—ensuring accuracy, efficiency, and on-time delivery.
- We set-up/update your ENERGY STAR Portfolio Manager account.
- We upload all property data for all services.
- We generate report and submit to the City for review
- We submit required reports to the City on your behalf.
Zenith Net-Zero is an independent service provider offering assistance with regulatory compliance. We are not affiliated with, endorsed by, or acting on behalf of the City of Montréal.
Let’s Simplify Your Compliance to
Montreal By-law 21-042
Instead of diverting your valuable time and resources , let ZenithNet-Zero take care of everything. Our team handles the entire compliance process—from data collection to submission—ensuring accuracy, efficiency, and on-time delivery.