In their place would be an open, unencumbered economic space similar to the United States.

At this floor, there are also storage rooms, pantry and similar spaces for service.

A similar space elsewhere in the trade center complex would rent for roughly $6,000 a year without furniture.

Upper floors contain offices, open plan office space, meeting rooms and similar spaces.

"Rents are 20 to 25 percent lower per square foot than the market price for similar space," he added.

Research what homes with similar extra space in your area are worth and do the sums.

The rent would be about $10 a square foot - almost two-thirds below the market rate for similar space.

The interior is divided by four columns into five similar spaces.

He estimated that a similar space in Manhattan would rent for about $6,000.

Rates for similar space in Midtown are between $34 and $44 a square foot.