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 carried out the Independent Design Review role for Seal House, a commercial office development, located in central London.
The office building has achieved a BREEAM ‘Excellent’ rating with ‘Very Good’ ratings for the retail units.
We are looking forward to our continued involvement in the project, pending positive planning feedback.
The completed site now comprises four detached industrial warehouse units ranging from 14,000sq ft to 36,000sq ft, all with naturally ventilated and heated offices. The two larger units each have an 8 person MRL passenger lift, while the smaller units have been provided with platform lifts. The warehouse area was designed as a shell for future fit-out with capped off utility services.
