Patcham Conservation Area has been extended to include parts of the historic parkland estate of Patcham Place.
The area now takes in Coney Wood and Patcham Recreation Ground, which originally formed part of the grounds to Patcham Place, a manor house which later became a youth hostel.
The green areas around the 16th century building form an important backdrop to the house and to the village as a whole.
The changes have been made after the conservation team at Brighton and Hove City Council carried out a review of the area last year.
The review was aimed at identifying buildings and features of special architectural and historic interest.
It was followed by a public consultation in October and November.
The council said that it received a positive response, with strong support for the area’s continued protection.
The details are set out in a new character statement, which describes the history of the area, its current character and appearance and proposals for future management.
Councillor Geoffrey Theobald, the council’s cabinet member for environment, said: “Extending the conservation area will preserve the unique character of Patcham for future generations.
“There are 33 listed buildings in Patcham and the 17th century Dovecote at Patcham Court Farm is considered an ancient monument, so there is plenty of history in this unique part of Brighton.”
The revised character statement for the expanded conservation area will be used in conjunction with planning policies to protect the character and appearance of the area.