noun
apartment building with auto-locking entrance
Refers to a multi-unit residential building where the main entrance locks automatically and requires a key or intercom for this word. Common in urban Japan.
See also: オートロック
オートロックマンションはセキュリティが高い。
Auto-lock apartment buildings have high security.
友達のオートロックマンションに入るとき、インターホンで呼び出した。
When entering my friend's auto-lock apartment building, I called them on the intercom.