Which historic house in Cape Town has a blue ceiling scattered with gold stars above the elegant staircase?

Does anyone happen to know which historic house in Cape Town has a blue ceiling scattered with gold stars above the elegant staircase inside the front entrance? I've tried Google, but there is no mention of a starred ceiling at Tuinhuis or Koopmans de Wet. I know there is one, but can't remember which house it is in.

I remember it clearly because I knew the starred ceiling at Hampton Court, near my childhood home in England. Finding another in Cape Town when my family emigrated to SA thus made a vivid impression.

Hope someone can help!

Hilary