Avtar is the Managing Director of RSHP Australia who are currently working as Lead Design Consultant with a multidisciplinary team to design five new Metro stations on the Metro Tunnel Project in the city of Melbourne. Previously he led the RSHP team in Sydney in the design and construction of the Barangaroo South Project - the largest single development in Australia at the time.

Avtar was in charge of One Hyde Park, a luxury residential development in London’s Knightsbridge. He was also responsible for the Law Courts in Antwerp, the associated Nieu Zuid Masterplan and the Bolivarplaats projects and the new headquarters of Lloyd’s Register in the City of London.

Avtar has also been the director of the Rogers Stirk Harbour + Partners Charitable Foundation, (formerly The Thames Wharf Charity), for some 30 years and sat on the Council of Management of the Foundation. The practice is entirely owned by the charity, which in turn receives an annual dividend from the practice and distributes this for charitable purposes at the direction of the employees, with over £20 million distributed to date.