An orangery and a garage have been approved by Dorset Council at Barncroft, Sea Hill Lane, Chideock.
A report says both will be shielded from public view by a high garden wall and as will not compromise the character of the local conservation area.
A similar application has previously been approved.
Chideock parish council had not objected to the change with Dorset Council receiving one letter in support of the proposal from a neighbour in Sea Hill Lane.
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