
The Claridge’s Hotel
The Practice was responsible for designing the complete refurbishment of the mechanical, electrical and public health services to all of the guest rooms, together with the penthouse units in The Claridge’s Hotel.


135 Park Street will comprise 13,616m² of Grade A accommodation located in London’s South Bank. The development is an 12 storey building comprising 13,475m² (NIA) of office area over basement to eleventh floor and 141m² of retail area located on ground floor. The office HVAC consists of 4-pipe fan coil units and central fresh air ventilation systems. Hot water for space heating and chilled water for cooling is provided by multi-function air source heat pumps at roof level. Domestic hot water for office toilets and showers are served by water source heat pumps utilising the heating circuit as a heat source.

The Practice was responsible for designing the complete refurbishment of the mechanical, electrical and public health services to all of the guest rooms, together with the penthouse units in The Claridge’s Hotel.

The exposed services strategy implemented at Fortess Grove compliments the industrial nature of the building. Cycling facilities are provided along with showers and lockers at ground floor level accessed directly from the rear of the building along Railey Mews. The development achieved a WiredScore certification of ‘Gold’ and a B rated Energy Performance Certification.

Watkins Payne reviewed a number of mechanical and electrical options with the team, focusing on retention of key central plant, overhaul and replacement of plant where required, and LED lighting to reduce energy and improve the office environment.

The Practice was responsible for designing and monitoring the refurbishment of the kitchen facilities.

The speculative office space is fitted out to a Category A standard and will be British Council of Offices (BCO) Guide to Specification 2019 compliant. The refurbishment has adjusted the temperature control zones to pull them better in line with the BCO recommendations than currently provided.