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Choosing the right office size is an important decision for any business. An office that is too small can lead to overcrowding, reduced productivity, and limited opportunities for collaboration. On the other hand, renting too much space can increase property costs and put unnecessary pressure on a company's budget. Understanding how much office space a company needs per employee helps businesses create a comfortable working environment while making efficient use of their resources.

For businesses searching for office space in London, the calculation involves more than simply multiplying the number of employees by a standard figure. Companies must consider their working arrangements, meeting rooms, shared facilities, future recruitment plans, and the layout of the building.

In this guide, we explain how to calculate office space per employee, the factors that influence office size, and how to choose suitable commercial office space for your business.

1. How Much Office Space Is Needed Per Employee?

The amount of office space required per employee varies depending on the business, its working style, and the facilities it provides. A company with a compact workstation-based layout may need less space than an organisation that requires private offices, multiple meeting rooms, and dedicated collaboration areas.

For initial planning, businesses can use the following illustrative estimates:

These figures are planning estimates, not statutory requirements or universal industry standards. They may include different proportions of workstation space and shared areas, depending on how the office is measured.

It is important to distinguish between usable office space and the total rentable area. The final amount available for workstations can be affected by corridors, building layouts, shared facilities, and other areas that cannot be used as desks.

Before choosing a property, review its floor plan and establish whether the available space will comfortably accommodate your team and operational requirements.

2. Calculate Your Company's Total Office Space Requirements

A simple way to estimate office space requirements is to multiply the number of employees who need to work in the office by an appropriate space allowance.

For example, a company with 20 employees using an illustrative allowance of 100 square feet per employee would calculate:

20 employees × 100 sq. ft = 2,000 sq. ft.

This provides an initial estimate, but the result depends on what the allowance includes. If the figure covers only individual workstations, you will need to add space for meeting rooms, reception areas, breakout spaces, storage, and circulation.

If the allowance already includes a share of those facilities, adding them again could overestimate the required office size.

A more reliable calculation starts with your actual workspace requirements. Estimate the area needed for desks, meeting rooms, shared facilities, and circulation, then combine those figures to produce a total.

This approach makes it easier to compare properties and determine whether a potential office can support your team without unnecessary expenditure.

3. Consider the Number of Employees Working On-Site

One of the most important factors affecting office space per employee is how often employees work from the office.

In a traditional office-based business, most employees may require a dedicated workstation. However, companies using hybrid working arrangements may have employees attending on different days, reducing the number of desks needed at one time.

For example, a business with 40 employees might find that only 25 typically attend the office simultaneously. Its workstation requirements may therefore differ from those of a company where all 40 employees are present every day.

Before deciding on office size, review attendance patterns and consider the busiest days of the week. You should also account for employees who need permanent desks because of their roles, equipment, confidentiality requirements, or working preferences.

Avoid basing your decision solely on average attendance. If employees frequently arrive on the same days, a smaller office could become overcrowded even when average attendance appears low.

Understanding actual office usage helps businesses select a workspace that is both practical and cost-effective.

4. Include Meeting Rooms and Shared Facilities

Office space requirements extend beyond desks and chairs. Employees also need suitable areas for meetings, collaboration, breaks, and everyday operations.

Depending on the business, these facilities might include meeting rooms, private offices, reception areas, kitchens, breakout spaces, printing areas, and storage.

A company that frequently meets clients may need several meeting rooms, while a business with a mostly remote workforce may prioritise flexible collaboration areas. Organisations handling confidential information may also require enclosed rooms for private conversations.

Create a list of the facilities your business uses regularly and assess how much space each requires. Consider whether rooms can be shared between departments and whether their capacity is sufficient during busy periods.

When comparing commercial office space, consider the layout as carefully as the total floor area. A well-designed office may accommodate your requirements more effectively than a larger property with inefficiently arranged rooms.

5. How Business Type Affects Office Space Per Employee

Different businesses have different workspace requirements. A professional services firm, for example, may need a combination of workstations, private meeting rooms, and client-facing areas. A technology company may require collaborative project spaces, while a customer service team may prioritise desk capacity and appropriate facilities.

Creative businesses might need flexible areas for brainstorming and teamwork, whereas organisations dealing with confidential documents may require additional private rooms and secure storage.

Your industry can therefore influence the amount of space needed per employee, even when two companies have the same headcount.

Before beginning your office search, identify the activities that take place in your workplace and the facilities required to support them. This will help you establish a realistic space allowance and avoid choosing a property based on employee numbers alone.

The goal is to find an office that supports the way your team works, rather than simply providing the largest possible floor area.

6. Plan for Future Business Growth

When calculating office space requirements, consider not only your current workforce but also your expected growth over the next 12 to 36 months.

If your business plans to recruit additional employees, launch new departments, or increase the number of people attending the office, your next workspace should provide sufficient flexibility.

For example, a company with 20 employees that expects to grow to 30 may need to consider whether its chosen office can accommodate additional workstations and facilities.

However, renting a much larger office than you currently need can create unnecessary costs. Compare your growth forecasts with the additional rent and other expenses associated with extra space.

Look for properties that provide a sensible balance between present requirements and future capacity. Depending on your circumstances, a flexible lease arrangement or a workspace with expansion options may be worth considering.

Planning ahead can reduce the likelihood of needing another relocation shortly after moving.

7. Consider Office Space Costs and Location

The right office size must fit within your company's budget. Rent is an important consideration, but it is not the only cost associated with commercial premises.

Businesses should also consider service charges, business rates where applicable, utilities, cleaning, maintenance obligations, insurance, furniture, internet connectivity, and fit-out costs. Relocation may involve deposits, professional fees, and moving expenses as well.

For companies seeking office space in London, location can also influence rental costs and employee convenience. A central location may be suitable for businesses that frequently meet clients, while another business district may provide a better balance between accessibility and budget.

Compare properties using their total expected occupancy costs, rather than focusing exclusively on rent per square foot.

A smaller, well-located office with an efficient layout may offer better value than a larger property that employees struggle to reach or that consumes too much of the business's budget.

8. Should You Choose Flexible Office Space?

Flexible office space can be an option for businesses whose workforce or space requirements may change. Serviced and managed offices may provide furnished workspaces, shared facilities, and different contract arrangements, depending on the provider.

These options can be useful for companies that want to reduce the responsibility of managing certain aspects of their premises or avoid committing to a long traditional lease.

A conventional leased office may be more appropriate for businesses that need greater control over their layout, branding, facilities, or long-term occupancy.

When comparing options, consider the total cost, contract length, included services, availability of meeting rooms, and ability to accommodate future growth.

Businesses exploring flexible office space in London should assess whether the arrangement meets their operational needs and whether the cost represents good value compared with other available properties.

9. Create an Office Space Brief Before Searching

Once you have estimated your office size, prepare a clear brief before contacting commercial property advisers or viewing properties.

Your brief should include your current headcount, expected recruitment, preferred number of workstations, meeting-room requirements, preferred London locations, budget, and target move-in date.

Also identify which features are essential and which are optional. For example, a dedicated reception area may be important for a client-facing business but unnecessary for a company with limited visitor traffic.

A clear brief makes it easier to compare suitable properties and reduces the time spent considering offices that do not meet your requirements.

It also gives a commercial property adviser a better understanding of your priorities, helping them identify options that align with your space requirements and budget.

Conclusion

The amount of office space a company needs per employee depends on its workforce, working arrangements, facilities, business activities, and plans for future growth. While illustrative space allowances can help with initial calculations, businesses should assess their actual layout requirements before committing to a property.

Start by estimating how many employees will attend the office at the same time, calculate the space needed for workstations and shared facilities, and review the total occupancy costs. Then compare properties based on their layout, location, flexibility, and ability to support future expansion.

For businesses exploring office space in London, Morgan Pryce can be a starting point for researching commercial office options. A realistic space estimate and clear property brief can help you find a workspace that supports your team while keeping costs under control.