Preheat oven to 450° F. Grease a large baking sheet.
Into a bowl combine flour, baking powder, sugar, baking soda, and salt. Blend in butter into flour with pastry cutter until mixture resembles meal.
Stir in bacon and cheese. Add buttermilk and stir until mixture just forms a dough. Gather dough into a ball and on a lightly floured surface knead gently 8 times. Pat out dough into a 6x5-inch rectangle. Cut dough into 9 rectangles and arrange about 1-inch apart on baking sheet.
Bake biscuits in middle of oven 15 minutes or until golden brown.Servings: 9 biscuits