
Seal House
Watkins Payne carried out the Independent Design Review role for Seal House, a commercial office development, located in central London.

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.

Watkins Payne carried out the Independent Design Review role for Seal House, a commercial office development, located in central London.

The development Pegasus Mayfair is targeting a B rated EPC, BREEAM ‘Outstanding’ and WELL ‘Gold’ and Watkins Payne is providing these services.

The 47,900ft² area of The Smithson building in Farringdon was refurbished to high quality office accommodation, for which Watkins Payne supplied building services engineering, vertical transportation engineering and energy consultancy to achieve an EPC B rating. The refurbished area is spread across basement and ground floor.

The refurbishment of 53 Great Suffolk Street in London involved the transformation of a historic warehouse into a contemporary office space. This project focused on preserving the building’s industrial character while introducing modern amenities and sustainable features.

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.

The office building is targeting Energy Performance Certificate (EPC) rating of A.