Heritage Regulation 2012

Essential maintenance and repair of a building, work or relic (being maintenance and repair necessary to prevent serious or irreparable damage or deterioration) must be carried out whenever necessary.

Essential maintenance and repair includes—

the taking of measures (including inspection) to control pests such as termites, rodents, birds and other vermin, and

the taking of measures to maintain a stable environment for in-situ archaeological relics.

The requirement for essential maintenance and repair extends to (but is not limited to) the following—

foundations, footings and supporting structure of any building, work or relic,

structural elements such as walls, columns, beams, floors, roofs and roof structures, and verandah or balcony structures,

exterior and interior finishes and details,

systems and components (such as ventilators or ventilation systems) intended to reduce or prevent damage due to dampness,

fixtures, fittings and moveable objects attached to the building, work or relic, or to its curtilage or site,

landscape elements on the site of and associated with the building, work or relic, including vegetation, garden walls, paths, fences, statuary, ornaments and the like.