Even if you’ve nailed down flow, aesthetics and acoustics, there are still ways to provide something out of the ordinary that attracts customer attention. Dennis Decker, brand manager of Harlem Shake, a burger and shake concept in Harlem, New York, suggests the following: An extra storage area for supplies. Plugs for cell phones by tables and counters, and enough plugs for events. Coat hooks and hooks under counters for purses and backpacks. Clear spaces for purses in bathrooms.

Proper air conditioning is also essential to any restaurant design. Nothing will turn patrons away faster than a non-air conditioned dining room in the middle of a summer heat wave. It may be tempting to skimp in this area, but in the end, poor ventilation and air conditioning can cost you a lot more in lost sales.

One way to spot problem areas before opening day is to sit in every single chair in your dining room. Study the view from each seat. You may find that one has a direct view into the bus station, while another gets a draft from the front door.

When you think about just how much goes into the design of the modern restaurant interior, you’ll gain a whole new appreciation for these wondrously designed interior spaces. Scroll down to see our picks of the best design ideas below.