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Mechanical System Design Guidelines for Low Carbon Buildings
Published by City of Toronto
This is the City of Toronto’s document, as published on its website on 20 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Guide
- Published by
- City of Toronto
- Date
- December 2021
- Also called
- Design Guidelines for Low Carbon Buildings
- For
- designer
- Building types
- All building types
- Pages
- 17
Overview
The City of Toronto's voluntary guidelines for low carbon and low carbon-ready mechanical system design in new and existing multi-unit residential and commercial office buildings, with the incremental capital costs measured for each archetype. It concentrates on heating, ventilation and air conditioning, setting out how a building is future-proofed for a district energy or ground-source connection, how heating water systems are designed for lower supply temperatures, and what retrofits prepare an existing building, closing with an appendix describing the residential and commercial office archetypes behind the cost tables.
What it covers
- Executive Summary
- Capital Costs for Multi-Unit Residential Buildings (MURBs)
- Capital Costs Commercial Office Buildings
- Introduction
- Purpose of the Guidelines
- Application of the Guidelines
- Design Guidelines for MURBs
- Future-Proof for District Energy or Ground-Source Heating
- Future-Proof for Lower Heating Water Temperatures
- Retrofits
- Design Guidelines for Commercial Office Buildings
- Appendix A: Description of Archetypes
- Multi-Unit Residential Archetypes
- Commercial Office Archetypes
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