Projects — Educational — Limberlost Place

Limberlost Place, a new addition to George Brown College’s Waterfront Campus, is a ten-storey, low-carbon building that will feature ecological innovation across its entire life cycle. A model for 21st century smart, sustainable, green building innovation, the 225,000 SF, net-zero carbon emissions Limberlost Place sets a precedent through its mass timber structural solution – accelerating the development of the Canadian forest products industry. Currently under construction in Toronto, this building achieves the highest levels of municipal targets, well in advance of the 2030 TEDI, TEUI, and GHGI reductions.

The future home of George Brown College’s School of Architecture, the large span, beamless structure will enable demising walls to expand and contract, providing flexibility of sizes for a variety of learning spaces. The angled apex of the roof structure will speak to future advancements of tall wood technologies as well as the development of net positive and low carbon building methodologies. The outer bars will house classrooms, labs, and administrative offices that look outward towards the Water’s Edge Promenade, Sherbourne Common, and the upcoming School of Design.

The building form and façade have been shaped to maximize access to natural light and fresh air. Two solar chimneys located on the east and west facades will be used to create a sustainable system of natural convection, drawing air up and through the building from operable windows. A “Lean Design Process” aided the development of the assembly sequence for the floor, roof, and envelope elements. This allowed for consistent specialist input based on a standardized project model and workflow, in addition to Facility Management planning, which was developed with extensive client input.

Both a methodology of assessing decisions based on adherence to the ambitions in the competition brief and a charter for viewing the design through the lens of the stakeholders, were implemented early on. An incredibly complex approvals process was organized through lean workflow / critical path principles that were applied to the project schedule through design and proactive involvement with authorities having jurisdiction. The elimination of waste was achieved through committing to envelope prefabrication, for just-in-time delivery (eliminating storage need), and fabrication in a controlled environment, for quality control and optimization. The lean pursuit of continuous iterations toward perfection was realized through a commitment to reduce risk and seek optimization by bringing on design assist partners for structure and envelope.

Limberlost Place is the first building of this type to be constructed in Ontario, in Canada, and perhaps the world. The approvals process for this one-of-a-kind endeavour was complicated by constructing on the prominent East Bayside Community in Toronto. The architectural team utilized fly-throughs, 3-D models and numerous meetings with the Jurisdiction Authorities. One very positive outcome of this high-level of engagement on the process was the research and academic papers that have arisen henceforth, contributing to long-term research and understanding of mass timber systems.