A spendid estate with 屋敷
Kanji Explanation: Shelter and shops with 屋

Heiji shows up at Detective Mouri’s office looking for the missing Shin’ichi. While there, a case presents itself. Heijii tags along with Mouri to investigate.
- 毛利:
- 「ほーーーーー 立派
( なお屋敷( ですなーーー…」- “Oh, what a splendid estate.”
Key Points
屋敷
( = a grand residence or estateHere 屋敷
( refers to a large, impressive private home.It suggests a mansion-like property, not just an ordinary house.
The お is honorific
The line says お屋敷
( , adding politeness and admiration.