"previously empty" is correct and can be used in written English.
It is typically used to describe something that was empty before, but is now no longer empty. For example: "The shelves were previously empty, but now they are fully stocked." "The once barren field is now filled with flowers, a stark contrast to its previously empty state." "The hotel was previously empty, but with the arrival of the conference, it became bustling with people."
They have taken on ships that were previously empty and built a community in Armley.
Now, the previously empty entry hall has a table (from Ikea) that serves as something of a shrine.
"By getting more bums on previously empty seats, this new service will help cut congestion and pollution in London".
The firm is building on a previously empty stretch of coastal land to the west of Lagos, one of the less frenetic parts of the Algarve.
This previously empty space and eyesore was transformed last summer into an interactive garden for staff and students by members of the university's Urban Gardening Society.
Of course this was why people grasped onto traditions traditions previously empty to her, but now, well, maybe they meant something.
Every second week a batch of sows was transferred to a previously emptied and cleaned farrowing unit.
Transmission of PMWS has also been demonstrated by mixing healthy weaners with PMWS-affected pigs in previously emptied and cleaned facilities [ 21].
In herds with a planned and segregated production, where groups of sows entered previously emptied farrowing units, the risk for demonstration of M. hyopneumoniae in piglets was higher in herds with two or four weeks between batches than in herds with one or three weeks between batches (OR: 2.7).
The walls, Mr. Byrd said, were "our way of marking several territories in the site" — which was previously two empty squares of grass — and of linking the two blocks.
Previously an empty attic space, the library/music room, which contains one of three antique pianos in the home, has steep wooden ceilings mirroring the outline of the pointed roof.
