Those extra floors, they have said, should be removed before the building is allowed to open.
He added two new wings, an extra floor and towers.
The building has been structurally designed so that if or when required, an extra floor can be added.
In 1884, the mill was extended and gained an extra floor.
An extra floor was also built to raise the mill to its present height.
In 1973 an extra floor was added to the low-rise building.
It was extended with an extra floor in the 16th century.
The second house was very much like the first, but about a third bigger and with an extra floor.
They added an extra floor to the main building and planted many rare trees.
Earlier in 2006, there were reports of an extra 10 floors being added to the design.