One effect of Toronto's dire housing shortage was that various construction advances were brought to the fore. As developers and policymakers look for faster and more sustainable solutions, panel and precast systems are proving to be a practical alternative. Modular and prefabricated construction are among the most proven innovations. The federal government is committing $25 billion through the Build Canada Homes initiative to expand factory capacity and target 500,000 new homes per year, doubling current production.
The modular design promises significant advantages: buildings can be built more quickly at lower costs and factory-controlled production reduces both material waste and greenhouse gas emissions. These benefits have led to modularity becoming a global focus, with governments looking to it as a tool to address declining productivity and an aging construction workforce. For fully volumetric systems, high upfront costs and fragile pipelines show how quickly momentum can fade when demand shifts or projects stall.
Prefabricated panels around stubs, image from Sapphire Balconys
By delivering walls, floors and façade components in repeatable sections, these methods shorten installation times and limit the risk of supply chain disruptions. On site, components can be moved quickly and safely into place using a crane, often within the building envelope rather than from the scaffolding, reducing reliance on harness work.
These systems give architects and engineers more flexibility to customize designs without sacrificing efficiency. For example, prefabricated balcony cassettes can be structurally standardized and at the same time allow for variations in design and detailing, so that the architectural expression is retained even in large-scale construction projects. These systems also help achieve the challenging goals of the Toronto Green Standard.
Mississauga-based Sapphire Balcony has positioned itself with products designed to integrate into panel and precast structures. With offices in Ontario, England and Ireland, the company's three-part approach is to understand customer expectations, address site-specific challenges and optimize installation.
Sapphire's prefabricated balconies, image from Sapphire Balconys
This has enabled Sapphire to deliver balcony systems that accelerate schedules while maintaining design flexibility. Record-breaking installations, such as the assembly of over 60 balconies in a single day, demonstrate how modular balcony cassettes can transform schedules while supporting safer, more predictable construction practices.
Opportunities for these balcony systems in Canada are expanding rapidly as governments and developers look to build housing on a large scale. Recurring housing unit types (e.g. student residences, senior living facilities and supportive housing) are particularly suitable for modularized delivery, while the build-to-rent market benefits from faster occupancy and earlier rental income.
Beyond residential construction, industrial, commercial and institutional projects also utilize prefabricated elements, with hospitals and office buildings using pods, facade panels and hollow core panels to optimize schedules. Combined with major federal investments, these applications signal a broader move toward hybrid building models.
Balcony systems installed at Vienna House in East Vancouver, BC, image by Sapphire Balconys
But the path forward is not without hurdles. Harmonizing building codes across provinces remains an urgent need, as area-specific requirements can slow factory scaling and impact efficiency. Retraining the workforce poses another challenge as crews move from traditional skilled trades to installation and assembly tasks, requiring new collaboration with unions and training programs.
Hybrid construction models allow repeating balcony components to be manufactured off-site, while leaving complex landings and amenities to traditional methods. Digital tools also play a major role. Building information modeling and digital twin technology enable simulation of assemblies prior to manufacturing, reducing installation errors and improving long-term asset management. For developers, this means greater predictability of costs and schedules, while engineers and architects gain confidence that design intent is maintained.
* * *
UrbanToronto's research and data service, UTPro, provides comprehensive data on construction projects in the Greater Golden Horseshoe – from proposal to completion. Other services include instant reports, downloadable snapshots based on location, and a daily subscription newsletter, New Development Insider, that tracks projects from the first application.