Open space vs closed offices: what the data actually says
The open floor plan was sold as a collaboration engine. A decade of research suggests the opposite may be closer to the truth.
There is a comfortable story that gets told whenever a company knocks down its walls. Take away the partitions, the story goes, and ideas will start bumping into each other. People will talk more, silos will dissolve, and collaboration will follow almost by itself. It is a lovely image, and it has reshaped the way most of us work. The only problem is that when researchers went looking for the effect, they kept finding its shadow instead.
The interaction paradox
The most quoted study on this comes from Ethan Bernstein and Stephen Turban, published in 2018 in the Philosophical Transactions of the Royal Society B. They did something unusually rigorous: instead of surveying people about how they felt, they fitted employees with sensors and tracked real interactions before and after two firms tore down their office walls. The expectation was more chatter, more spontaneous exchange, more of the very thing open plans are sold on.
What they measured was close to the reverse. Face-to-face interaction fell by roughly 70% after the move to open plan. People did not start talking more. They went quiet, put on headphones, and retreated into email and instant messaging to reach the colleague sitting a few metres away. Removing the walls did not remove the need for boundaries. It just pushed people to build invisible ones.
That is the paradox worth sitting with. When everyone can see and hear you, the natural human response is not to open up. It is to protect your attention however you can, and often the quietest way to do that is to stop engaging with the room at all.
The productivity tax nobody puts on the balance sheet
Even if you set the collaboration question aside, there is a second cost that rarely makes it into the business case for open plan, because it does not show up as a line item. It shows up as lost time.
Start with interruptions. Research from Gloria Mark’s group at UC Irvine found that once you are pulled off a task, it takes on average around 23 minutes to fully refocus on what you were doing. Not 23 seconds. Not the length of the interruption itself. Twenty-three minutes to climb back to where your head was before. Now consider that the same body of work found roughly 29% more interruptions at open workstations than in enclosed offices, and the arithmetic starts to look expensive.
The IPSOS and Steelcase Global Workplace Survey put a number on the aggregate. Office workers, on average, lose around 86 minutes a day to distractions. That is not a rounding error. Over a working week it is the better part of a full day spent not on the work, but on the friction around it. When a company moves to open plan to shave real-estate cost per head, this is the invisible counter-entry. The square metres saved on the lease can be quietly cancelled out by the minutes lost at the desk.
Noise is not a side effect
If interruptions are the visible tax, noise is the ambient one. Gensler Research has found that a large share of workers, on the order of 70%, report dissatisfaction with the noise levels around them. That is a striking majority to be unhappy about something so fundamental to concentration.
What makes noise particularly corrosive is that you cannot opt out of it the way you can decline a meeting. A conversation two desks over does not need your permission to enter your head. Speech is the worst offender precisely because your brain is wired to parse it, so a nearby phone call is far harder to tune out than the hum of a printer. The open plan, by design, maximises exactly this kind of intrusion and then asks people to do focused, cognitively demanding work inside it.
So is open plan simply wrong?
This is where it would be easy to overcorrect and declare that everyone should be sealed back into private offices. That conclusion is just as lazy as the one it replaces. The honest reading of the data is not that closed beats open. It is that layout is not a universal question with a universal answer.
A trading desk, a newsroom, and an early-stage team hacking on a shared problem may genuinely benefit from being in the open and in earshot of each other, because the work itself is fast, verbal, and collective. A team of analysts, writers, or engineers doing long stretches of deep, solitary work is being taxed by that same environment every single day. The failure is not the open plan itself. It is applying one geometry to every kind of task as if the furniture were neutral.
The better question a workplace can ask is not “open or closed?” It is “what does the work here actually consist of, hour by hour?” How much of the day is genuinely collaborative versus genuinely heads-down? Where do people go when they need to think, and does that place exist at all? A layout earns its keep when it matches the real rhythm of the work, and it becomes a hidden liability the moment it is chosen for the brochure photo instead.
What we are really deciding
Space is never just space. Every wall you build or remove is a statement about what you think the work needs, and about how much you trust people to manage their own attention. The uncomfortable finding in all of this research is not that we picked the wrong layout. It is that most organisations never really asked the question in the first place. They inherited a fashion.
So here is the one worth leaving open. If you mapped a single ordinary day in your office, how many of those 86 lost minutes are the price of a design decision nobody in the building actually chose on purpose?
