Woodingdean Primary School is to become part of a London-based academy chain from next year.
The school’s board of governors applied to join Eko Trust, which also runs Hangleton and Benfield primary schools, in the summer.
The government has now approved the transfer which will take place early next year.
Woodingdean head Gemma Chumnansin said: “Becoming an academy will be the start of an exciting new chapter in our school’s story.
“We are so proud of what has been achieved to date but are ambitious to reach the next level.
“After more than two years of serious consideration, research and listening to our community’s views, we are clear that joining Eko Trust, a strong and successful organisation that shares our values and ambitions, represents the best opportunity for us to achieve this.
“There was broad support for the proposal that we join Eko and we are excited at the huge opportunities ahead for our pupils, their families and our staff.
“We will be able to access wider resources and expertise through Eko, and will collaborate with its other schools, including in Brighton and Hove.”
Darren Arbon, co-chair of governors at Woodingdean, said: “Eko is a great match for us and working with them will mean we can achieve even stronger outcomes for pupils, including disadvantaged and SEND learners.
“But while we are clear that Woodingdean Primary School will get even better by joining Eko Trust, it will still retain its distinct character, traditions and culture, unique to the community we serve.
“We will still be a state school, with the same name and same uniform, and we will remain as invested in the Brighton and Hove education system as we are now.”
Eko Trust chief executive Rebekah Iiyambo said: “Woodingdean Primary School is such a wonderful school and we are delighted that it has been approved to join us next year.
“We share their commitment to ensuring all children have the best chance to reach their full potential, and are excited to work with their staff, parents and above all pupils for mutual benefit.”
Privatisation of our schools
How much are they going to pay BHCC for the rent of the premises? I hope it is a commercial rate like any other private company would have to pay such as a private nursery!