This list showcases buildings with the longest construction time (measured in years) in the world.
Longest construction time
| # | Building | City | Construction time | Floors | Year | |
|---|---|---|---|---|---|---|
| 1 |
|
Conjunto JK Torre A [Conjunto Governador Kubitschek] | Belo Horizonte | 17 years | 26 | 1970 |
| 2 |
|
IJzertoren | Diksmuide | 13 years | 23 | 1965 |
| 3 |
|
The Fairmont Hotel Vancouver | Vancouver | 10 years | 17 | 1939 |