Grinsell & Johns offer a service as an Accredited and Principal Certifier, where we can issue many certificates in place of the Council. This includes signing Strata Plans or Subdivision Plans. Grinsell & Johns are land development consultants, with proven expertise in Environmental Planning, Civil Engineering and Surveying. The firm commenced operations in Bankstown in 1957, and hav... https://www.grinsell.com.au/