The Environment Agency has signed up for a new headquarters at one of Bristol’s key city centre regeneration projects.

The green quango will take a pre-let of 70,000 sq ft at local developer Westmark Developments’ redevelopment of Cabot House, just off College Green in Bristol.

Adrian Slade, project director at Westmark, said: ‘Cabot House will be one of the greenest buildings in the country and will set a new standard locally. This makes it the perfect fit for the Environment Agency.’

The development also includes a car park, a block of 80 apartments, a third of which will be affordable, and another 25,000 sq ft building.

Westmark, which was chosen in 2005 by Bristol Council as its preferred developer for Cabot House, will now demolish the old office building, widely considered to be a 1960s eyesore, and build an environmentally impeccable building for the agency on the site.

Westmark is an arm of the Lewis Trust Group, the family trust best known for founding and owning the River Island fashion chain.

Williams Gunter Hardwick advised the Environment Agency and King Sturge is letting agent at Cabot House. Demolition work on site is due to begin next month. The decision is now subject to approval from the Department for the Environment, Food and Rural Affairs.