How Much Office Space Do I Need in London?

Planning an office in London can feel like a guessing game. You want enough space for people to work well, but not so much that you pay for empty desks, unused meeting rooms, and quiet corners no one ever sits in.

The fastest way to get it right is to plan around how your team uses the office on a busy day, then translate that into space for desks, meetings, calls, and the shared areas that make the place feel human.

This guide walks you through a simple sizing method for London, with clear rules of thumb for headcount, meeting rooms, and phone booths.

Key takeaways

Before we get into the details, it helps to keep the plan simple. Most office sizing problems come from treating desks, meeting rooms, and call space as separate decisions, when they are really one system.

Use these points as your checklist as you read. If you tick them off one by one, you will usually land on a space that feels calm on busy days and still gives you room to grow.

• Start with 10m2 per person, then adjust for collaboration and shared space
• Match meeting rooms to meeting habits, not a generic one size fits all
• Add phone booths when calls spill into open space and break focus
• Sanity-check ventilation, bikes, loos and growth before you sign

Now, we will build a plan in the same order most teams make decisions. First, we pin down peak-day headcount, then we convert that into floor space, then we size meeting rooms and phone booths to match how work really happens.

Along the way, we will also call out the London checks that can catch you out, like building services, shared amenities, and the difference between private space and what the building provides.

Start with headcount, not desks

The biggest sizing mistake is counting total employees and calling it headcount. In London, most teams now have a mix of in-office days, client visits, remote work, and occasional spikes when everyone shows up for planning, training, or a deadline.

What matters for sizing is your peak-day attendance. That is the busiest day you want the office to handle without people fighting for seats or taking meetings in corridors.

A second trap is desk-first planning. It can leave you with plenty of desks but not enough places to meet, take calls, or do quiet work. A good office is a system, desks plus the spaces that support them.

The peak day headcount that really matters

Start by thinking in three simple groups. You have core users who come in most weeks, occasional users who appear for certain projects or team days, and guests like candidates, clients, partners, contractors, or visiting colleagues.

Then ask one practical question: on the busiest normal day you want to support, how many people will be in at once? That number is your working headcount for space planning.

If you are looking at buildings with shared amenities, some pressure eases because you are not hosting everything inside your private area. Many London serviced and managed buildings include bookable meeting rooms and shared breakout zones, which can reduce what you need inside your own suite.

It is worth scanning what is typically included in different locations across the Flexioffices London office space listings, so you can plan around what the building already provides.

A simple London headcount formula

Here is a simple formula that works well for early planning. Peak-day attendance equals the regular in-office people on that day, plus expected guests, plus a buffer.

The buffer is not waste. It is how you avoid the we hired three people, and now everything breaks problem. For many teams, a 5% to 15% buffer is a sensible range, depending on hiring pace and how unpredictable attendance is.

If you want a second check, use your calendar. Look at a normal busy week and count how many people are in on the single busiest day, then add guests and a growth buffer.

It is boring, but it is accurate, and it gives you a headcount you can confidently use for the next step.

Convert headcount into square footage

Once you have peak-day attendance, you can translate it into space. London people often talk in square feet, while many workplace standards are in square metres, so it helps to keep both in mind as you plan.

A common London starting point is around 100 sq ft per person, but the right number depends on how collaborative your workplace is, how much storage you need, and how many meetings happen in the office.

Rather than chasing a perfect number on day one, aim for a sensible baseline, then adjust up or down once you have checked meeting space, call space, and shared areas.

The baseline density most teams forget to sanity-check

If you want a credible baseline, look at what workplace guidance bodies recommend. The British Council for Offices has indicated a move towards 10m2 per person as a design occupancy density standard for general workspace planning.

That does not mean every office must be built exactly that way. It does mean that if your plan is far tighter than that, you should pause and ask what will give, which is usually meeting space, quiet space, circulation, or wellbeing areas.

Tight plans can also create knock-on issues with building services, because density drives demands on lifts, toilets, and ventilation. You can review the BCO position in the British Council for Offices recommendations for greener and healthier offices, which explains the direction of travel on design assumptions.

A useful way to use 10m2 per person is as a sense check. If your early maths says you can fit 40 people into a small footprint at a much tighter density, you might still do it, but you should plan more carefully for calls, meetings, and comfort on peak days.

Add space for shared areas and circulation

Desks are only part of the footprint. Even in a simple layout, you will need circulation routes, storage, printers, kitchen points, and informal spaces where people can talk without blocking working areas.

In practice, many teams find that once they have counted their desk area and core rooms, they need an extra 25% to 40% on top for shared space and circulation. The more collaborative your culture is, the more that number creeps up.

If you are choosing between a conventional lease and a flexible model, your total cost of occupation can change once you include the things you would otherwise manage yourself. This is why some teams prefer a managed option that combines a private space with operational support.

The Flexioffices overview of managed office space explains how this sits between serviced and traditional leasing, and why it can make sizing simpler when you want a tailored fit-out without taking on every moving part.

Meeting rooms that match how your team actually meets

Meeting rooms are where many London office plans succeed or fail. Too few rooms and every call becomes background noise, which drags down focus and makes the office feel stressful.

Too many rooms and you pay for expensive space that sits empty most of the week. The trick is to plan a mix, then tune it using real meeting habits rather than guesses.

Before you decide on room counts, watch your meeting behaviour for a week. Look at calendars and ask how many meetings are 2 to 4 people, how many are 5 to 8, and how many are 9 plus.

Most offices discover they are short on small rooms, not big boardrooms, because quick chats and 1:1s happen all day.

Pick your meeting mix: focus rooms, project rooms, boardroom

A simple way to think about meeting rooms is by the job to be done. This keeps your fit-out grounded in what people actually need, rather than copying another company's floorplan.

It also helps you balance formal rooms with practical rooms, so you are not stuck using a large room for a two-person conversation.

• Focus rooms (1 to 2 people): private calls, sensitive chats, quick 1:1s
• Project rooms (4 to 6 people): planning, stand-ups, collaboration with a whiteboard
• Team rooms (8 to 12 people): weekly team meetings, training, client workshops
• Boardroom (10 to 16 people, optional): formal client meetings, leadership sessions

When you are in a serviced building, some of these needs might be covered by bookable shared rooms. That means you can keep your private footprint smaller while still giving people enough places to meet.

The Flexioffices guide to serviced office space is a useful reference for what is commonly included, especially if you are comparing a few buildings with different amenity packages.

A quick way to size meeting rooms for London schedules

Now for a practical method that avoids pure guesswork. Use your peak-day attendance and estimate how many people will be in scheduled meetings at the same time during your busiest periods.

As a starting point, many teams assume that 10% to 20% of people are in meetings at any one time on a normal busy day, then adjust upward if the work is meeting-heavy, like sales, consulting, or client services.

To keep it tangible, here is a light rule of thumb for a first pass. For 10 to 15 people, plan one project room and make sure you have access to a larger shared room when needed.

For 16 to 30 people, plan two meeting rooms, typically one 4 to 6 person room and one 6 to 10 person room, and try to include a small focus room if calls are common.

For 31 to 60 people, peak, plan three to five rooms with a strong bias towards 4 to 6 person rooms, because they tend to be the hardest spaces to replace with informal seating.

Phone booths and quiet pods for calls and deep work

Phone booths and acoustic pods have become a pressure valve of the modern office. They can reduce noise quickly without building walls everywhere, and they help hybrid teams who spend part of the day on video calls.

But booths are not magic. If your culture is noisy, or your office is too dense, booths can become permanently booked and create a new kind of frustration.

The best approach is to treat booths as part of a balanced layout. They work best when you also have enough meeting rooms and at least one quiet zone where people can focus for longer stretches.

When booths solve problems and when they do not

Booths help most when calls are short and frequent, and when open plan seating makes private conversations awkward. They are also useful when people need privacy for HR, finance, or client topics, and when meeting rooms are kept for longer sessions.

Booths help less when meeting rooms are already scarce, because people will use booths as a substitute and quickly run out of availability. They can also struggle in a call-heavy culture where calls are long, because the booth becomes a mini office and bookings stack up all day.

If you are installing pods, it is worth checking building compliance early. Enclosed pods can raise questions about fire strategy, ventilation, and how they sit within Building Regulations expectations.

Sweco's guidance on Building Regulations considerations for office pods gives a clear overview of the types of issues that can come up during planning.

Booth planning rules of thumb

There is no perfect ratio, because a sales team behaves differently from an engineering team. Still, you can use a sensible starting point and adjust once you observe booking patterns.

As a starting range, many teams begin with one single-person booth per 10 to 20 peak-day people, then add more if calls are frequent and long. If you add larger pods for two to four people, treat those as a substitute for some meeting rooms, not an extra.

When you trial booths, pay attention to time patterns. If everyone books them for the same daily slot, you might solve it by shifting routines or by creating a larger project room instead.

The goal is not to cram in more pods. The goal is to reduce friction so people can work without competing for quiet space.

The London reality checks

London buildings come with real-world constraints that affect space planning. Even if a floor plan looks perfect, the office can still fail if basics like fresh air, bike storage, or access routes are ignored.

It is also worth remembering that an office is part of your hiring story. People notice light, noise, crowding, and whether it feels easy to work, especially on the busiest day.

Do a quick reality check before you fall in love with a space. Ask what happens when the office is full, when a client workshop lands, or when you need to onboard five new starters at once.

Lifts, loos, vents and bike storage

Your layout must work with the building's services. Density changes demand on toilets and ventilation, and if you use lots of enclosed rooms and pods, you can create pockets of stale air if ventilation is not thought through.

UK employers have duties around workplace ventilation, and the Health & Safety Executive sets out that enclosed workplaces must have a sufficient supply of fresh or purified air. The Health & Safety Executive ventilation guidance is a practical starting point when you are assessing whether an office will feel comfortable at your planned density.

Commuting patterns also matter in London. If more people cycle, you may need showers, lockers, or at least practical storage, and local planning guidance has pushed for stronger cycle provision in employment uses.

The Mayor of London site includes details in the London Plan transport chapter, which is useful context when you are thinking about bikes and end-of-trip facilities.

Hybrid, guests and growth buffers

Hybrid working makes sizing harder, but not impossible. The trick is to avoid building for the quietest day or the noisiest one-off day, and instead build for your busiest normal day.

Then make overflow easy, so you can handle occasional spikes without paying for permanent empty space. Overflow can be physical, like a flexible touchdown zone, or operational, like access to bookable rooms.

Here are three ways teams commonly handle overflow without over-sizing the whole office:

Each one works best when it is planned upfront, because last-minute fixes tend to feel messy and frustrate people.

• Use shared meeting rooms in the building for larger sessions and workshops
• Create a touchdown area that can switch into training space on peak days
• Keep one flexible room that can act as a project room or a quiet zone

Finally, include a growth buffer in your plan. Even a slow-growing team can be surprised by a new client, a merger, or a hiring push, and the cost of moving too early can be higher than the cost of a little planned flexibility.

If a move is on your horizon, the Flexioffices guide to moving offices is a helpful checklist of steps teams often miss until the last minute.

Put it together with a practical example

Let's say you have 40 employees total, hybrid working, and you expect 26 people in on your busiest normal day. Add two guests on average, and a modest 10% buffer for growth and surprise attendance.

Your planning headcount becomes 31 people. That is the number you size desks, rooms, and booths for, so peak day feels smooth rather than cramped.

Now translate that into space. Using 10m2 per person as a credibility check suggests roughly 310m2 for general workspace planning, then you adjust for layout, shared amenities, and how much collaboration space you want.

For meeting space at this size, many teams start with two meeting rooms, one sized for 4 to 6 people and one for 6 to 10, plus one small focus room if calls are common. For phone booths, start with two booths and review after a month, because usage patterns are easy to measure once you are in the space.

If you want to sanity-check assumptions against market context while you do this sizing work, the Flexioffices post on UK office space statistics in 2025 can help you benchmark typical expectations alongside costs and trends.

Conclusion

If you are asking how much office space you need in London, start with your busiest normal day and plan from there. Then size desks, meeting rooms, and phone booths as one connected system, not separate shopping items.

A good London office feels calm on peak days, supports focus as well as collaboration, and has enough flexibility that you are not forced into another move a year later.

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