–the construction, alteration, conversion, fitting out,
commissioning, renovation, repair, upkeep,
redecoration or other maintenance (including cleaning which involves the use of water or an abrasive at high pressure or the use of
corrosive or toxic substances), de-commissioning,
demolition or dismantling of a structure;
–the preparation for an intended structure, including
site clearance, exploration, investigation
(but not site survey) and excavation, and the clearance or preparation of the site or structure for use or occupation at its
conclusion;
–the assembly on site of prefabricated elements to form a
structure or the disassembly on
site of prefabricated elements which, immediately before such disassembly, formed a structure;
–the removal of a structure or of any product or waste
resulting from demolition or dismantling
of a structure or from disassembly of prefabricated elements which immediately before such disassembly formed such a
structure; and
–the installation, commissioning, maintenance, repair or
removal of mechanical, electrical,
gas, compressed air, hydraulic, telecommunications, computer or similar services which are normally fixed within or to a
structure.