A "good" balcony size in 2026 depends on how you intend to use the space, but architects generally categorize them by depth. A Bistro Balcony (3 to 4 feet deep) is considered the minimum "functional" size; it is sufficient for a small table and two chairs, making it ideal for morning coffee but tight for movement. For a comfortable "Outdoor Living Room" feel, a Standard Balcony should be at least 6 to 8 feet deep. This depth allows for a larger lounge chair or a small outdoor sofa, with enough clearance to walk past furniture without turning sideways. If you plan on "Al Fresco Dining" for four or more people, you should look for a Large Balcony or Terrace that is at least 10 feet deep and 12 feet wide. This allows for a full-sized dining table and a grill. In 2026, "Livability" is the key metric; a balcony that is long but narrow (e.g., 20 feet wide but only 2 feet deep) is often less useful than a smaller, "squarer" space. For apartment hunters, a "good" balcony also includes integrated drainage and structural capacity for balcony gardens, which have become a major trend in urban sustainable living.