34 Mayfair

34 Mayfair is a grill restaurant at 34 Grosvenor Square, with its entrance on South Audley Street. The September 2026 wine list pours six Champagnes by the 125ml glass: Henriot Brut Souverain (£21, £108 a bottle), Ruinart Brut (£24, £138 a bottle), Perrier-Jouët Grand Brut (£26), Ruinart Rosé (£27), Ruinart Blanc de Blancs (£33) and Dom Pérignon 2017 (£55, £320 a bottle). The bottle list continues through non-vintage, vintage and rosé sections. Open Mon-Fri 12:00-00:00, Sat 11:00-00:00, Sun 11:00-22:00. The by-the-glass list also has English sparkling from Nyetimber, so ask for Champagne by name. Prices change, so check the current list when ordering.