Builder Design Pattern in Swift

House.swift

class House {
    var color: UIColor
    var noOfRooms: Int
    var noOfBathrooms: Int
    var hasBalcony: Bool
          
    init(builder: HouseBuilder) 
    {         
        color = builder.color
        noOfRooms = builder.noOfRooms         
        noOfBathrooms = builder.noOfBathrooms         
        hasBalcony = builder.hasBalcony     
    }
}