Restaurant Interior Design: How Space Shapes What Guests Order

Restaurant interior design shapes what guests order mostly by shaping the evening around the order: how long they stay, how well they hear each other and how the food tastes in that room. The effect on a particular dish is weaker, and harder to prove, than design writing often suggests.

That is good news for anyone designing a room. It means you can stop hunting for a colour that sells more risotto and start on the things you can actually control.

What does the evidence actually support?

The most solid findings are about time and sound, not about steering dishes. Three studies are worth knowing, each with limits.

A 2024 field experiment in Tel Aviv assigned days at an Italian restaurant to slow music, fast music or the usual playlist. Across 282 evening tables of one or two diners, slow tempo produced the longest stays (about 80 minutes), the usual playlist about 69 and fast tempo about 57. The bill did not differ significantly between conditions. Alcohol and time spent were linked to bigger bills.

A 2018 laboratory study presented to the Acoustical Society of America asked 28 students to talk over recorded restaurant noise from 35 to 85 dB(A). Disturbance began at about 52 dB(A), and stated willingness to spend time and money fell as noise rose. The authors suggested keeping background noise below roughly 50 to 55 dB(A).

A 2014 paper by Spence, Michel and Smith reports earlier lab work in which loud white noise (75 to 85 dB) reduced perceived sweetness and saltiness, and hypothesises that umami is more resistant. It is an opinion piece, not an experiment.

Each has a catch. One restaurant. Twenty-eight students answering a hypothetical question. A hypothesis. None proves that your room will behave the same way. All three point in one direction: space acts on the guest's experience of time and taste before it acts on the menu.

Why design the occasion before the finishes?

Because guests order for an occasion, and the room tells them which occasion they are in. A quick lunch, a long celebration dinner and a drink at the bar are different jobs. A room that sends mixed signals asks guests to guess.

Write the occasion down before you pick a single material:

• Who is coming, in what group size?
• How long do you want them to stay, and how long will they want to?
• What should they be able to hear: each other, the music, the kitchen?
• What should they see on arrival, and from their seat?

Then check each design decision against that brief. Our guide to writing a hospitality design brief shows how to turn those answers into something a designer can use. If you skip this step, the room will still send a message. It just may not be yours.

How does sound change a dining room?

Sound sets pace and comfort, and it is the design variable most often left to chance. Hard floors, bare walls and tall ceilings bounce sound around. As a room fills, guests raise their voices, which raises the noise, which raises voices again.

Practical steps, in rough order of cost:

1. Measure the room at peak, not on a quiet afternoon. A phone app is a rough start. A sound level meter is better.
2. Add absorption where guests sit, such as ceiling panels, soft wall finishes, upholstered seating and curtains. Tables and chairs are not absorbers.
3. Match the music to the pace you want. The Tel Aviv study suggests tempo changes stay length. If you want quick turns at lunch and slow dinners, choose accordingly.
4. Keep the music under the conversation, not over it.

Guests will forgive plain walls. They rarely forgive a room where they cannot hear each other.

Does the layout change what people order?

Layout changes what guests notice, who they sit with and how they move, and those shape the order in ways you can observe in your own room. There is little published proof for most of the rules of thumb, so treat these as hypotheses to test, not facts.

• Seat sizes. If most of your guests come as pairs, a room of tables for four wastes seats and leaves couples dwarfed by furniture. Match tables to the groups you really get.
• Light. Lighting is often argued from mood, and claims that a given level steers choices are easy to find. Design it for what guests need: a menu they can read and faces they can see. Then treat any steering effect as a test, not a promise.
• Bar visibility. A bar seen from the door tells guests a drink alone or before dinner is welcome. A bar hidden at the back tells them it is for waiting.
• Sightlines to the kitchen or pass. An open kitchen shows craft and also noise and smoke. Decide whether you want theatre or calm.
• Menu in the room. Chalkboards, counters and displays plant ideas before guests sit down. A pastry case by the till can do more than a paragraph on the menu. Our notes on menu design mistakes cover how the printed menu works with this.

Choose one rule, change it, and compare sales mix before and after. That beats trusting any list, including this one.

How should you test a design idea?

Run a small, controlled test rather than a redesign. Time, sound and seating are all easy to vary, and your point-of-sale system already records what happened.

1. Pick one change: tempo, volume, a table layout, a bar stool count.
2. Change it for a set of comparable days, such as four Tuesdays against the four before.
3. Track average stay, spend per head and the share of drinks or desserts.
4. Keep the change only if the effect shows up in numbers you trust and guests do not complain.

Be wary of small samples. The Tel Aviv study used 282 tables, and even that came from one restaurant. A week of data in your own room is still a single room, but it is the room you are paying rent on. For pace, also read our guide on table turn time.

Which design habit does the most damage?

Designing for photographs instead of for the guest's evening. A room can look excellent online and be uncomfortable to sit in for two hours. Sit in every type of seat in your own restaurant, at peak, for the length of a meal, before you open and again after a month.

Ask staff, too. They know which tables guests ask to move from, which ones are always last to be chosen and where the room is too loud to take an order.

Key takeaways

• Design shapes the occasion first: time, sound, comfort and who sits where. Dish choice is a weaker, harder-to-prove effect.
• One 2024 field experiment found tempo changed stay length (roughly 57 to 80 minutes) but not bill size. It was one restaurant.
• Noise research suggests keeping background levels around 50 to 55 dB(A) or lower. Measure your own room at peak.
• Write the guest's occasion before choosing finishes, and check each decision against it.
• Test one change at a time against your own sales data, and sit in every seat yourself.