
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.

The mixed use development comprises two office buildings totalling 220,000ft² of high quality office accommodation together with a 289 unit residential scheme consisting of private apartments and affordable housing building.

Watkins Payne was commissioned to design a Cat A fit-out refurbishment across the existing 11,800sq.ft building. The ground floor was completely redeveloped with a new office entrance lobby and 1,300sq.ft new retail space.

The Grade II listed building at 2 New Burlington Street has been redeveloped to offer 5,000ft² of high quality residential accommodation, for which Watkins Payne supplied building services engineering and energy consultancy to achieve an EPC D rating.

The building has been meticulously refurbished to incorporate a range of sustainable features, targeting BREEAM Excellent and EPC A ratings.