
The Minerva House redevelopment works will include the partial demolition of the existing building and extension comprising of additional upper floors and a new lower ground floor. The development is a 9 storey building comprising 12,659 m² (NIA) of office area over basement to eighth floor and 289 m² of retail area located at ground floor.
The office HVAC consists of variable refrigerant flow fan coil units and on floor fresh air ventilation systems. Domestic hot water for office toilets and showers are served by central storage served by dedicated air source heat pumps.

Saffron House was refurbished to provide 38,000ft² of high quality office accommodation. Watkins Payne supplied building services engineering which saw the 1st, 2nd and the 3rd floor including the ground floor reception of Saffron House converted into open plan office areas and reception.

5 Broadgate is a new 12 story building next to Liverpool Street station in London which offer 700,000ft² of high quality office accommodation. This is the new headquarters for the Union Bank of Switzerland housing office and trading floors. Watkins Payne supplied building services engineering, BREEAM duties and energy consultancy to achieve BREEAM ‘Excellent’ and an EPC A rating.

The Practice was responsible for the design and site monitoring of the related mechanical, electrical and public health services installation.

Sustainability initiatives include LED lighting with occupancy detection and daylight dimming controls, solar thermal hot water heating, air source heat pumps and photovoltaic panels, resulting in an EPC rating of A and a Very Good rating under BREEAM New Construction (Industrial) 2014.