 PTW has become a highly diversified architectural practice with its design leaders specialized in a broad range of sectors including residential/mixed use, infrastructure, aged care, the arts (education/culture) and sport.PTW Architects has also made a point of developing techniques and relationships that allow the firm to create genuine partnerships with other architectural firms and specialist consultants, sharing specialised knowledge and awareness of local context and culture amongst a project’s designers.PTW Architects (formerly Peddle Thorp & Walker) was established in Sydney by James Peddle in 1889.