(a) an excavation or stockpile and the creation of either of them;
(b) a building or an addition to or replacement or repair of a building, and the construction or placing of any of them on, in, over or under land;
(c) a change of use of land or a building or an act done in relation to land or a building that results in or is likely to result in a change in the use of the land or building; or
(d) a change in the intensity of use of land or a building or an act done in relation to land or a building that results in or is likely to result in a change in the intensity of use of the land or building.