Buildings
emissions since 2019
Intensity since 2019
Buildings Climate Action Index | 2019 = base year
CASE STUDY
A new kind of building code
The Challenge
The federal government is trying to spur a doubling of construction to nearly 500,000 homes a year. More homes equal more emissions.54
The Idea
For Oliver David Krieg, President of Vancouver-based Intelligent City, it all starts with a product platform. Intelligent City developed a prefabricated platform for multi-family housing, which incorporates robotic assembly processes and software automation to enable design flexibility. “Instead of manually designing the artifact–the building–you design the algorithm that designs the building,” said Krieg, who was named president earlier this year after several years as the company’s Chief Technology Officer.
Traditional design approaches, Krieg said, have hurt widespread adoption of prefab. The Intelligent City platform can accommodate many styles and offers scalability by making an assembly-line approach to production possible. “We can create this level of mass customization that is beyond anything we've ever seen,” Krieg said. “A robot doesn't care what it does as long as you give it the code.”
As for the material of choice, Intelligent City landed on mass timber for several reasons. “It can be grown sustainably, and it is very machinable,” Krieg said. It lends itself to prefab because it's lightweight and easy to manipulate. Mass timber drives automation because, while lightweight relative to concrete, panels are still bigger and heavier than what a human can carry.55
The Obstacles
The mass timber industry remains in its early stages of evolution. Issues such as insurance and finance remain challenging, although the federal government is setting policy initiatives to help scale the sector.56
Intelligent City’s first project was an 80-unit affordable housing project in Vancouver, not far from its manufacturing facility in Delta. When Windmill Developments approached the company about partnering on a project in Toronto, the team at Intelligent City was intrigued. But a project 4,000 kilometres from its factory carried with it new challenges. Krieg knew it only made financial sense if the company had a manufacturing facility near Toronto, but building one for a single project was a non-starter. He also knew that while the project would be a loss leader for Intelligent City, it would introduce the company to another major market (a potential future site of a second manufacturing facility) and allow Intelligent City to “prove the whole thing works.” So the company got to work, producing the components—the walls and floors—at its Delta facility, which is home to five robots and 30 staff, and shipped them on flatbeds across the country.
Like any new technology, there have been some bumps in the road. For one thing, it’s difficult to schedule a construction site when you’re at the mercy of cross-country shipping on land. “Theoretically,” said Krieg, “if all the trucks were lined up and ready to go, you could have put up the structure and envelope in about 45 days.” Instead, the first panels arrived in May and the structure and envelope will be complete in November 2025.
The Insight
For a long time, Intelligent City didn't define the design variability it could offer in enough detail. As a result, clients—developers, architects, engineers—sought bespoke solutions. The risk, Krieg said, is “you become a custom panel builder and lose cost efficiency and speed.” Offering choice is important, he said, “but we needed to home in on what’s possible.”
Another learning: design, performance and sustainability are great attributes, but it all comes down to the price. Ultimately, prefab’s speed-to-market metric could be a gamechanger. Constructing a highly finished prefab mass timber building four to six months faster than the concrete version has the potential of being a breakthrough. Faster construction equals less construction overhead and financing costs. “You can redeploy your capital four to six months faster—you can build 25% more buildings with the same capital,” Krieg said. “The time value of money is significant.”
Emissions intensity estimates are defined as emissions (tonnes CO2 equivalent) per square meter of floor space. Floor space data for residential and commercial buildings was sourced from Natural Resources Canada’s Com-prehensive Energy Use Database. For years where NRCan estimates were unavailable, floor space was projected using a simple linear trend informed by recent historical growth, providing an indicative estimate aligned with current patterns in building activity. Emissions intensities were calculated separately for the residential and commercial sectors and rolled up into a single measure using a weighted average determined by floor space.
The emissions decline resulting from decreased coal-powered electricity generation is taken from historical emissions factors and implied coal-based generation as reported under Table A13-1 as part of Statistical Annex 13 Electricity Intensity.
The emissions impact from the estimated increase in natural gas powered generation is based on historical conversion factors from 2019-2023 reported data under Table A13-1 as part of Statistical Annex 13 Electricity Intensity.
Total sector emissions within electricity in 2025 are the summation of the estimated decline in emissions from coal-powered electricity generation and the increase in natural gas-powered electricity generation as detailed above. These values are then compared relative to 2005 and 2019 as disclosed under Table A13-1 as part of Statistical Annex 13 Electricity Intensity.
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Mass timber can be grown sustainably, and it is very machinable