Office Space Calculator

Our office space calculator is a brilliant tool that allows you to undertake a preliminary assessment of your office space needs. It is not a substitute for requesting an Office Principles consultant to attend your offices and provide professional advice on your requirements (without any obligation). However it is a great guide to enable you to anticipate your requirements for office space and to relate this to an overall average space per person. Why not also check out our Office Fit-out Cost Calculator?

If you have any queries or would like a consultant to provide you with some guidance as to how to use the office space calculator to best advantage, please call 0118 913 1811 and ask for Lee Parsons.

Section 1 How many people do you wish to accomodate? Total: (average)
Offices Individual Offices Open-plan desks(or shared offices) Hot desks (visiting employees)
People without a permanent desk
Section 2 How many meeting/training/general purpose rooms do you need? Total: (average)
Rooms Large Up to 25 people Medium (Up to 12 people) Small (Up to 8 people)
Interview Rooms
Section 3 What General Facilities do you need? Total: (average)
Main Reception Large (3 receptionists & 20 guests) Medium (2 receptionists & 10 guests) Small (1 receptionist & 6 guests)
Comms / Server Room Large (Up to 30 racks) Medium (Up to 15 racks) Small (Up to 5 racks)
Filing & Storage Rooms Large Medium Small
Copy & Print Areas Large Medium Small
Kitchenettes or Tea Points Large Medium Small
Cleaners Cupboards Large Medium Small
Cloak Rooms Large Medium Small
Shower facilities Large Medium Small
Section 4 What employee welfare facilities do you wish to provide? Total: (average)
Breakout Areas Large Up to 20 people Medium (Up to 10 people) Small (Up to 6 people)
Full-service Restaurant Large Medium Small
Gymnasium Large Medium Small
Sick Room / First Aid Large Medium Small
Multi-faith Room Large Medium Small
Section 5 Have we forgotten anything? Total: (average)
Area One Quantity Size
Area Two Quantity Size
Area Three Quantity Size
Area Four Quantity Size
people Total space required:
ft2 Average
ft2 Generous
ft2 Minimum
m2 Average
m2 Generous
m2 Minimum
ft2 per person
m2 per person

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Frequently Asked Questions

How much office space do we need?

As a rough estimate, you should allow approximately 250 square foot per person. However no two offices are the same. Office space can be more or less efficient based on the shape and design. There are legal implications, which are stated in the workplace (Health Safety and Welfare) Regulations 1992, in regards to the amount of office space that should be allowed per person. The associated Approved Code of Practise and Guidance states that, workrooms should have enough free space to allow people to get to and from workstations and to move within the room with ease. The total volume of the room when empty, divided by the number of people normally working in it should be at least 11 cubic metres. When deciding how much office space you need, you should speak to one of our workplace consultants who will be able to give you expert advice based on your organisational requirements.

What is the average square foot per person?

Based on an average office you should allow between 150 – 350 square foot per person. However, this is largely dependant on head count and your industry type. Smarter ways of working can also affect the amount of office space that you might need. By implementing an agile working strategy, you could massively reduce the square foot per person, and achieve greater cost savings.

What is the average size of an office?

The average size of an office largely depends on the headcount and industry type. It is also heavily dependant on any workplace strategies that have been implemented. Rather than looking at the average office size, it is better to consider how efficient and productive you can make each square foot of office space. As a rough estimate, you should allow 250 square foot per person. This means that if you employ 50 people, you can estimate that you need 12,500 square foot of office space today. However, there are many variables to consider. How large are the workstations? Do you want a large breakout area, or a small tea point? Do you need a large reception area? How many meeting rooms are required? We would highly recommend that you speak to one of our workplace consultants who would be able to advise you on your office space requirements.

How do I calculate how much office space I need per employee?

Estimating the amount of office space that you need per employee can be tricky. First you need to assess your current situation, and then decide what your expectations are for the growth of your business over the next few years. You should be asking questions such as, does each employee need an individual desk or is sharing possible? What kind of staff do I have, executive, administrative, or sales? On average, with open plan workstations you should allow 60 – 110 square foot per person. For medium individual offices, 150 – 250 square foot should be allowed. Conference and meeting rooms should be a minimum of 50 square foot plus 25 square foot per person seated. You should also take in to account other rooms such as a kitchen, comms room, file room, and halls and corridors. Trying to calculate how much office space you need per employee, can be a daunting task, which is why we would highly recommend that you speak to one of our workplace experts.

What are the key things to consider when deciding how much office space I need?

When you are planning how much office space you need, there are several areas which need careful consideration.

  • How many employees do you currently have?
  • How much equipment do you have to accommodate?
  • Do you plan to take on more staff in the next few years?
  • Do employees need an individual desk or should agile working be considered?
  • What style of office would work best for your organisation?
  • What kind of staff do I have, executive, administrative, or sales?