Hi! When you modify the layout of the larger bedrooms, a couple of the options have a note saying "* Includes Dressing table and Snack bar" (you'll also see the snack bar in the image of the room as well).

Also, without giving too much away, just continue playing the game as you normally would, and within 2-3 days of receiving the "Hire a gardener" task, you'll meet someone who can help you achieve that. Good luck!