Brunel Building is on the site of what was a three storey 1960s office that spanned the canal and filled the whole site with a ground floor carpark. The project’s structure deals with several constraints including the Grand Union Canal, two Bakerloo underground tunnels and a recently constructed road bridge over the canal. The response to these constraints led to an external super structure generating clear spans to dispersed in-situ concrete cores. The structure also provides solar shading. High floor-to-floor dimensions and seat-height spandrel panels raise the glazing and give deep daylight penetration to the floorplates. The exposed undersides of the structural concrete floor panels help create comfortable thermal gradients. In addition, two 160m deep artesian wells radically reduce energy consumption. Huge sliding glazed walls open the reception, and a linked café restaurant, to a new public canal-side walk created by setting the building back from the canal by six metres. Fully let long before completion, Brunel Building is home to an extraordinarily diverse workplace ecology including Sony Pictures, Alpha FX, Splunk and the Premier League, who will share the roof terraces and the expansive below ground amenities.