noun
fireproof building; fire-resistant building
Technical term used in building codes and construction to describe a structure designed to withstand fire.
このマンションは耐火建築物に指定されています。
This apartment building is designated as a fireproof building.
耐火構造 refers to fire-resistant construction or structure in general, while 耐火建築物 specifically means a building that meets fireproof standards.
Compound of 耐火 (fireproof) and 建築物 (building). The exact historical derivation is uncertain; the term is a modern technical coinage.