The social media brand’s European, Middle East & Africa (EMEA) headquarters in Cumberland Place, Dublin, is Twitter’s biggest office outside the US. The six storey, 1970s building has been refurbished in partnership with its owners, Hibernia REIT, to be as eco-friendly as possible.

As a result, Cumberland Place has now been awarded the highest LEED certification available – platinum – making it Twitter’s first office to achieve this level of LEED certification, and one of the few offices in Dublin to attain it.

Key elements of the eco refurbishment, designed by MCA architects, have been green roofs, optimised use of glazing, and an energy efficient heat recovery ventilation system. The ventilation throughout uses Gilberts’ circular GSFE swirl diffusers with a supplementary coanda plate integrated into exposed building services, supplied by Keane Environmental.