
11 STRAND
LONDON
















Project Type: CAT A Refurbishment
Client: Avery Real Estate
Project Team:
​Contractor: Millane Contract Services
Duration: 24 Weeks
Value: £2.3 million
Services Provided: Mechanical & Public Health Services Design, Electrical Services Co-ordination
Project Overview
The 11 Strand project involved a CAT A refurbishment of approximately 15,000 sq ft of commercial office space across three floors. The client requested a modern design with partially exposed services in the break-out areas and reception, creating a balance between aesthetic appeal and functionality. Proton Built Environment was responsible for designing the mechanical and public health systems while ensuring seamless electrical services coordination.
Scope of Work
The MEP design included several key components:
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LED Lighting & Controls: Installation of energy-efficient LED lighting systems, with advanced lighting controls to optimize energy use and occupant comfort.
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Mechanical Ventilation with Heat Recovery (MVHR): A sophisticated MVHR system was installed on each floor, integrated within the restricted space of on-floor plant rooms. This system not only improves air quality but also enhances energy efficiency by recovering heat from exhausted air.
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Air Conditioning: A VRV multi-split air conditioning system was installed to meet the climate control needs of the open-plan office spaces.
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Toilet Core Fit-out: The design also extended to the toilet cores, ensuring that these essential spaces were fitted with modern, efficient MEP systems.
Challenges & Solutions
The installation of the MVHR system was particularly challenging due to space restrictions within the plant rooms adjacent to the building’s louvres. This required precise planning and coordination to ensure the system met both performance and spatial requirements.
Our Solutions:
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Tailored Mechanical Design: Proton Built Environment collaborated closely with the client and contractors to design a bespoke mechanical system that met the building’s specific spatial constraints while delivering the desired environmental conditions.
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Complete MEP Overhaul: The existing MEP systems were completely replaced with energy-efficient solutions that align with modern sustainability standards, fulfilling the client’s brief for self-contained mechanical and public health services for each floor.