Located in the heart of London’s West End, 9 Cavendish Square has undergone a high-quality refurbishment to transform this prestigious address into a modern, efficient and sustainable workplace. The works involved a full mechanical, electrical and public health (MEPH) services upgrade to deliver a building that meets and exceeds operational and environmental standards.

Watkins Payne provided the mechanical, electrical, public health and sustainability design services for this complex retrofit project. 

The scope included:

– Full replacement of MEPH systems throughout the building

– R32 VRF Systems, air handling units and VAV terminal units

– Design and specification of new water storage tanks, booster pump sets, hot water storage and water treatment plant

– High-efficiency heating and cooling VRF systems with modern BMS integration

– High-efficiency LED lighting with lighting control

– Compliance with current standards on acoustic performance, water safety (including Legionella prevention), and energy efficiency

Sustainability and Compliance

The retrofit at 9 Cavendish Square reflects our commitment to improving building performance and environmental responsibility. The refurbished building has:

– Improved energy efficiency

– Enhanced occupant comfort and air quality

– Reduced operational carbon emissions

– Complies with BREEAM and Building Regulations Part L

– Achieved BREEAM Excellent rating

– Achieved a NABERS UK Design Review Target Base Building Energy Rating of  5.0 Stars

– Aligns with a WELLv2 ‘Enabled’ equivalent Gold rating

Water conservation, low-energy lighting, high-performance insulation and intelligent controls form part of a wider strategy to reduce environmental impact.