International design practice HASSELL has registered Australia's first Green Star - Interiors project, with its soon-to-open studio in Sydney set to be one of the nation's greenest offices.

The Green Building Council of Australia (GBCA) launched the new Green Star - Interiors PILOT rating tool in 2012 to assess the interior fitout of any building type, from schools and shops, to offices, bank branches and hotels.

The Green Star - Interiors PILOT rating tool evolved from the Green Star - Office Interiors rating tool.

"HASSELL is a founding member of the GBCA, has been a strong supporter of Green Star since its earliest days and sponsored the development of this new rating tool,” said GBCA's Chief Executive, Romilly Madew.

“We are excited to be working with HASSELL to test the Green Star - Interiors credits on this flagship project, and set new best practice benchmarks for sustainable interiors.”

Head of Knowledge and Sustainability at HASSELL, Brett Pollard, said that supporting the new rating tool is a natural extension of the practice's commitment to sustainable design.

"We want our new home to be an exemplar of the latest thinking in workplace design, as well as sustainability. Being involved in piloting the new rating tool will allow us to really get to grips with Green Star - Interiors and apply the lessons learnt to our clients' projects as well as our own new workplace," Mr Pollard said.

The new HASSELL studio in Sydney will be located in a heritage wharf building at Walsh Bay and is the latest in a series of studios HASSELL has designed for itself in repurposed buildings.

"The new workplace will be both beautiful and sustainable reflecting the practice's broader design approach. We are looking forward to doing some of our greatest work in the Walsh Bay studio," said Matthew Pullinger, Managing Principal in the HASSELL Sydney studio.

The GBCA is seeking expressions of interest from projects, particularly in the education, retail and hospitality sectors, to achieve the first certifications in their market segments.