Please Note: The tastecard discount is not available on Celebration Days including Valentine's Day, Mothering Sunday, Father's Day etc. 23 Grosvenor Gardens is closed all day Sunday. 23 Grosvenor Gardens Wine Bar is a unique venue comprising of a ground floor bar with a garden room and half a dozen vaults spread out over the basement levels. A decade ago, 23 Grosvenor Gardens was a bank and now it has been successfully turned into a fantastic place where guests can relax and socialise over a glass of wine. If you are feeling peckish you can choose from the extensive menu which includes a variety of freshly prepared dishes. The old vaults that existed under the bank and have been refurbished along with the entire underground storage which today leads to a garden room, to provide a unique dining experience that is hard to come by.