In October, eight pieces of royal jewellery, valued at around €EUR88 million ($AUD143 million), were stolen from the gallery during a burglary and remain missing.
According to Louvre director Christophe Leribault, the gallery's jewellery and other valuables will be relocated to a secure, windowless vault. The changes will restore the Galerie d'Apollon's original role as a ceremonial hall.
The Galerie d'Apollon is one of the Louvre's most magnificent rooms, created under the young King Louis XIV and designed by architect Louis Le Vau. Painter Charles Le Brun decorated its interior, and it was later enhanced by artists including Eugène Delacroix.
The gallery inspired the Hall of Mirrors at the Palace of Versailles and remains a surviving part of the original royal palace that visitors can still experience today.
The crown of Empress Eugénie, one of the stolen pieces, was recovered in damaged condition near the museum. Leribault believes the incident will raise the crown's profile.
"This crown will be more famous than it was before – just as the Mona Lisa became after its theft in 1911," he said.
When the crown returns to the Louvre, it will be exhibited in a larger space with improved security.
More reading
Another French museum targeted in multi-million dollar jewellery heist
Louvre Museum’s jewellery heist set for the silver screen
Louvre Museum jewellery raid fallout continues
Images of crushed royal crown released by Louvre
Authorities announce progress in Louvre jewellery heist investigation