The Lyne House Key is found in Room 105 on the first floor of the Blue Creek Apartments in Silent Hill 2. The key is located inside a secretarial desk which can be opened after solving the Coin Puzzle.
The key is marked by the word "Lyne" which supposedly refers to the owner of the apartment it belongs to. The key unlocks Room 209 on the second floor of the apartments, which is connected to Room 208 by a balcony.
- The name "Lyne" refers to Adrian Lyne, director of Jacob's Ladder. (See also: Inspirational works of Silent Hill)