age of a building; years since construction
Used primarily in real estate, architecture, and property listings to indicate how many years have passed since a building was constructed.
This property is relatively new, so the interior is in good condition.
I'm worried about the earthquake resistance of an old house.
Compound of 築 (construction) and 年 (year). The exact historical derivation is uncertain, but the term is a straightforward Sino-Japanese compound used in modern real estate contexts.