SCHEDULES  SCHEDULE 1  REQUIREMENTS  Article 4(2)  Table 2  4 Building or  structure  Maximu m height  (metres  above  existing  site level  of  approxim ately 31.5  metres  AOD  unless  otherwise  stated)  Minimum  height  (metres  above  existing site  level of  approximat ely 31.5  metres  AOD  unless  otherwise  stated)  Maximum  length  (metres)  Minimum  length  (metres)  Maximum  width  (metres)  Minimum  width  (metres)  The gas  turbine  generator  (including  gas turbine,  generator, air  inlet filter  house, air  inlet duct,  exhaust  diffuser, and  auxiliaries  such as lube  oil system,  air dryers,  fuel gas filter  package,  instrument  air system,  compressor  washing)  (Part of  numbered  work 1A)  27  –  50  –  40  –  The exhaust  gas emission  flue stack  (part of  numbered  work 1A)  35  32.5  12  –  12  –  Control  7  –  45  –  25  – 