The restaurant was forced to close indefinitely after flash floods destroyed its basement kitchen and wine cellar, and was forced to cancel all bookings made prior to the flood.
Founders Katie Exton and Peter Hall have announced on social media that the restaurant will be reopening on 11 September.
“Now fully dry after the flood,” reads the restaurant’s Twitter bio.
“Re-opening on 11 September!”
The restaurant began the process of drying out the waterlogged restaurant on 15 August, and will finish the repairs when the site is fully dry.
Exton and Hall opened Lorne early last year, following a series of stints in some of the capital’s high-prole restaurants including The River Café; Chez Bruce; and Brawn, as well as Benu in San Francisco.
The restaurant was this year listed at number 42 in the Estrella Dam National Restaurant Awards.
Lorne’s neighbours include Andrew Wong’s upmarket Chinese restaurant A Wong, which was not affected by the flooding.
James Ramsden of Magpie reached out to the damaged restaurant at the time of the flood, offering a collaboration at his restaurant in Mayfair while repairs are under way.