(2) ‘Adding an extension to a construction work’ means building work in the course of which an existing construction work is modified by the building of an annex adjoining, abutting, overlying or underlying the construction work., (2) Ehitise laiendamine on ehitamine, mille käigus muudetakse olemasolevat ehitist sellele juurde- ehk külge-, peale- või allaehitamisega., defined within the scope of all Estonian legal instruments, defineeritakse kõikide Eesti õigusaktide ulatuses