
St James’s Market Phase 2
St James’s Market Phase 2 is the “pioneer” related to the Design for Performance initiative and NABERS UK rating.

The 90 Long Acre redevelopment scheme consists of a major refurbishment and extension of the existing 1980s building. The development is an 8 storey building comprising 20,988m² (NIA) of office area and 1,903m² of retail (A1,D1,D2 and SG) area located on lower ground – and upper ground floors.
The office HVAC consisting of a mixed-mode design with openable façade elements allowing for natural ventilation and cooling when available to the perimeter zones. Hot water for space heating is provided by air source heat pumps and chilled water for cooling is generated via air cooled chillers. Multi function heat recovery air source heat pumps are utilised during simultaneous heating and cooling conditions for high efficiency operation.

St James’s Market Phase 2 is the “pioneer” related to the Design for Performance initiative and NABERS UK rating.

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

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

The building at 10 New Burlington Street has been redeveloped to offer 172,000ft² of high quality office and retail accommodation, for which Watkins Payne supplied building services engineering, vertical transportation engineering and energy consultancy to achieve an EPC B rating. We also supplied BREEAM services and achieved a BREEAM Excellent rating for the development.

The carbon neutral status was achieved by exemplary as-built air tightness facade solar and thermal performance significantly in excess of the Building Regulations requirements, highly energy efficient M&E systems, LED lighting and photovoltaic panel arrays on the roof of the warehouse.

The building at 20 St James’ Street has been refurbished to offer 53,295ft² of high quality office accommodation, for which Watkins Payne supplied building services engineering, vertical transportation engineering, BREEAM duties and energy consultancy to achieve an BREEAM ‘Very Good’ and EPC B rating.