In Civilization 7, when you construct a new building over an existing one—a process known as overbuilding—the original building is replaced, and its specific bonuses and adjacency effects are lost. This mechanic allows players to modernize their cities by upgrading outdated structures to access improved yields and benefits associated with newer buildings. It’s important to note that while the new building inherits the tile, the unique advantages of the previous building do not carry over.
Overbuilding explained in detail at game8.co
Ageless buildings in civ 7
However, ageless buildings are an exception to this rule. These structures retain their full yields and effects permanently and cannot be overbuilt. Therefore, once an ageless building is placed, its bonuses remain throughout the game, and it occupies its tile indefinitely.
Strategic planning of building placements is crucial, especially considering adjacency bonuses and future city development. Overbuilding provides a means to adapt and enhance your civilization’s infrastructure as you progress through different ages, but it’s essential to weigh the benefits of new buildings against the potential loss of existing bonuses.
For a more detailed understanding of adjacency and overbuilding mechanics, you might find this video guide helpful:
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