• Toronto, ON
  • Targeting LEED® Platinum certification
DIALOG Services
  • Architecture
  • Electrical Engineering
  • Interior Design
  • Landscape Architecture
  • Mechanical Engineering
  • Planning & Urban Design
  • Structural Engineering
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DIALOG’s team of architects, structural, mechanical, and electrical engineers, interior designers, and landscape architects came together to ask: how high and, how sustainable can we go with a 'supertall'? Our answer: 105 stories or more. Our prototype is designed with a series of construction types and a concrete core that allow for a variety of uses from retail and office, to residential, and public amenities and beyond. An innovative combination of materials including wood, steel and concrete will maximize the use of sustainably harvested wood by volume. The result is a zero carbon high-rise that’s designed to address increased density while reducing greenhouse gases and generating its own energy.

This is the project for our times. Together with my partners, we will make super tall a super sustainable reality.
Craig Applegath
FIG 3 Hybrid Timber Floor System HTFS

Process 01

We pushed further by exploring each of the structural components that make extreme vertical height a possibility in supertall towers. We started by analyzing traditional floor plates and systems.

We believe the biggest gains in this area will be achieved with our patent-pending Hybrid Timber Floor System (HTFS). This innovative system will help us build higher, faster, and more sustainably out of wood.

FIG 10 Overall Structural System Diagram

Process 02

Wind plays an out-sized role in the design of tall structures. Our prototype is shaped to gently curve out to meet the ground. This is reminiscent of the way that a tree trunk performs the same task as it meets the earth.

FIG 5 Building program and vertical transportation diagrams

Process 03

 A stacked mix of uses and zones, imagined with office space, a hotel, residential and upper observation deck and amenities in the upper two zones.

FIG 12 Energy and carbon flow diagrams

Process 04

Tall timber is a critical part of the solution to climate change. When used in combination with other materials in conjunction with PVs, a district energy cogen plant, we'll lock up carbon and keep it out of the atmosphere for decades.

FIG 7 Birds eye view looking down at park and greenhouses

Process 05

Open spaces mirror the structure’s height with a long, horizontal green spaces that act as a relief for users, supporting health and wellbeing for all.

FIG 2 Proposed site plan

Process 06

The prototype would serve as a key node of dense transit-oriented development in a largely suburban environment.

FIG 9 View of tower and landscape looking West

Process 07

Our prototype's form maximizes the efficient use of mass timber with rectangular HTFS. A rectangular floor plate provides greater usable and efficient floor space for a variety of uses.

FIG 4 Interior main lobby view

Process 08

At the same time, exposure to sustainably harvested timber contribute to occupant wellbeing and maximize natural interior views.