The Piazza Clock Tower is available as one of the options through the Piazza Selection Kit which also allows to upgrade the Piazza Clock Tower to level 2, thus improving its properties.
Piazza Clock Tower comes with the special set bonus. The amount of happiness, coin boost, supply boost and attack boost depend on the buildings age and to how many other Piazza Set buildings it is adjacent to.
For more information see the Set Bonuses.
The Piazza Clock Tower comes with the special set bonus. When it is adjacent to other buildings belonging to the Piazza Set the properties of the building are improved.
Level 1 Piazza Clock Tower can be upgraded to level 2 with the Piazza Clock Tower Upgrade Kit which is available as one of the options from the Piazza Selection Kit. The selection kit gives the player an option to choose a new level 1 building or an upgrade kit to bring an existing building to level 2.
Higher level version of the building has improved properties.
Piazza Clock Tower will produce the following effects. Base effects will always be produced. Bonus effects are determined by how many other unique Piazza Set buildings it is connected to.