Allen House Project

Allen House, an early Edwardian mansion building of architectural merit and importance in scale, positioned in this ever sought after location that is Kensington W8.

With 45 beautifully appointed studios, 1-, 2- and 3-bedroom lateral apartments, and 2 penthouses with skyline views, Allen House offers more than fine finishes and seamless functionality. It is the acquisition of a lifestyle that has been thoughtfully curated to make every day effortless.

The architect initially approached Big Foot Systems (BFS) for structural support to handle the heavy HVAC system planned for the roof of a commercial building. The original proposal involved a traditional fabricated steel structure made by a third party. However, after in-depth discussions, BFS suggested a non-penetrative plant deck solution.

This option ultimately convinced the architect, as it provided numerous advantages over the steel structure. Big Foot Systems also partnered with Bridge Louvre Company, who designed and installed louvre screens in tandem with our system, ensuring a fully integrated solution. The architect’s initial plan involved the use of a fabricated steel structure.

However, this solution presented several potential challenges:

• Roof Penetration - Using a steel structure would have required roof penetrations, increasing the risk of leaks and long-term maintenance issues.
• Complex Installation - Steel structures involve more intensive labour, longer installation times, and coordination across multiple contractors, potentially delaying the project.
• Visual Impact - The large HVAC units needed to be concealed to maintain the building’s aesthetic integrity, adding complexity in coordinating with a screening solution.

In response to these challenges, BFS proposed a non-penetrative plant deck system that avoided roof penetration entirely. This approach offered a lightweight, modular, and easier-to-install solution compared to traditional steel structures. To ensure the solution was comprehensive, they partnered with Bridge Louvre Company, who provided custom-designed louvre screens that complemented their system.

The architect, after careful consideration of both the fabricated steel option and our proposed non-penetrative plant deck solution, opted for the latter. The benefits of quick installation, cost-effectiveness, and the avoidance of roof penetration were compelling factors in the decision.

The project was completed on time and within budget. The 15m x 10m plant deck, supported by angled posts and finished with GRP grating, provided a durable, non-slip platform for the HVAC system.

The integration of Bridge Louvre Company’s louvre screens ensured the system was not only structurally sound but also visually appealing, hiding the HVAC units from sight while maintaining adequate airflow. Visit bigfootsupport.com to start discussing your project.

This article featured in the Summer '25 edition of BIMCRUNCH. Enjoy the full magazine here. To explore further or to download BIM objects from Big Foot Systems, simply join Bimstore for free access to their products and accompanying literature. For additional insights, visit their manufacturer profile on Bimstore, their company website or socials.