Vocabulary
改築
かいちく
structural alteration (of a building); reconstruction; rebuilding; remodelling; remodeling
noun
suru-verb
vt
freq #13
Example sentences
自宅（じたく）を改築（かいちく）する際（さい）に、この部屋（へや）にだけ防音設備（ぼうおんせつび）と内鍵（うちかぎ）を付（つ）けたんだ。
When my home had an extension built I only had this room fitted with soundproofing and an internal lock.