(1)If in municipal area of a Municipality any wall or building or anything affixed hereto, be deemed by the Chief Officer of the Municipality or the Municipal Architect or the Municipal Engineer of a Municipality toe be in ruinous state, or likely to fall, or to be in any way dangerous, he shall forthwith cause a written notice to be served on the owner and to be put on some conspicuous part of he wall or building or served on the occupier, if any, of the building requiring such owner or occupier forthwith to demolish, repair, or secure such wall, building or thing, as the case may require.