Location
Piccadilly, London
Architect
dRMM
Main Contractor
8build
Subcontractor
Valley Provincial
The refurbishment of Egyptian and Dudley House involved a pair of Grade II listed commercial buildings originally constructed in 1905–1906. RYNO was required to deliver a fully integrated roof terrace solution combining aluminium decking and bespoke planters, all supported from a single, coordinated substructure.
Introduced to the project through long-standing partner Valley Provincial, RYNO worked closely with the team to deliver all components as part of a single warrantied system that maintained design intent while simplifying construction on a constrained and sensitive heritage site.


The Challenge
The roof terrace formed a commercial office breakout space, designed to bring usable external amenity into a compact footprint atop a listed building refurbishment.
The original specification separated the decking and planter systems with multiple suppliers, interfaces, and structural assumptions, all required to sit on the same roof build-up. This presented several challenges:
- Mixed warranties
- Extremely limited height build-ups, typical of refurbishment projects
- Requirement to avoid waterproofing penetrations
- Complex load paths due to heavy planters
- Large, central tree planters alongside smaller perimeter units
- Third-party elements, including a bar, needing integration into the terrace layout
Any solution had to provide sufficient structural support, meet insulation manufacturer guidance, and maintain a cohesive architectural finish, all within a tight spatial envelope.


The Solution
Through collaboration with Valley Provincial, RYNO developed a fully integrated TerraSmart® roof terrace system, combining:
By consolidating decking and planters into a single engineered system, RYNO removed the need for concrete foundations and eliminated unnecessary complexity across trades.
Key system features included:
- Shared substructure for decking and planters
Both elements were supported from the same TerraSmart framework, creating a unified build-up and reducing interfaces which is a critical advantage on a refurbishment project.
- No waterproofing penetrations
All loads were transferred through the system without breaching the waterproofing layer, protecting the integrity of the existing structure.
- Low build-up capability
The TerraSmart system was configured to work within tight height constraints while still providing adequate support beneath planters.
- Spreader plates over Foamglas insulation
To meet manufacturer technical guidance, spreader plates were introduced beneath planter bases to distribute loads safely across the insulation layer.
- Freestanding planter solutions
Several planters were positioned over parapet walls, requiring bespoke freestanding support arrangements to manage load transfer without reliance on the parapet structure.
- Coordinated planter heights and layouts
Varying planter sizes, including large central tree planters, were carefully coordinated to create a flowing, cohesive terrace layout within a compact space.
- Third-party integration
Additional elements, including a bar, were successfully integrated and supported off the decking system, ensuring stability and continuity across the terrace.
Both decking and planters were finished in RAL 8019 Grey Brown, delivering a consistent, seamless aesthetic suited to the character of the historic buildings.


Collaboration & Simplifying the complex
RYNO’s direct involvement was focused on supporting a specification change, working primarily with Valley Provincial to provide a complete and technically robust one-stop-shop solution rather than the original mix of manufacturers.
By offering a complete, integrated system rather than isolated components, RYNO was able to:
- Provide a single point of warranty
- Simplify installation
- Reduce risk at interfaces
- Eliminate unnecessary structural works
- Deliver meaningful value engineering without compromising performance or appearance


The Result
The completed roof terrace at Egyptian and Dudley House delivers a stunning and high-quality, external amenity space that respects the constraints of a listed building refurbishment while meeting modern performance requirements.
Through smart system design, careful coordination, and collaborative value engineering, RYNO helped transform a complex specification challenge into a clean, buildable, and future-proofed terrace solution.
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