How much does an office space in Belgium cost per m²?
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Your office is getting crowded. Productivity is suffering from constant noise and distractions. People are reluctant to make the commute because working from home is just... easier. You know something needs to change. The question keeping you up at night: 'How much is this going to cost - and how do I know I won't get hit with surprise expenses halfway through?'
This is the #1 concern we hear from leaders considering a workspace transformation. You're making a major investment with limited experience in office projects, trying to balance your team's needs with budget reality. You don't need to figure this out alone.
As a business grows and becomes more successful, it's natural for the current workspace to reach its limits. There are a few clear indicators that suggest it's time to seriously think about upgrading to a new workspace. Some of these signs include:
- Your current workspace no longer provides enough room to accommodate all employees
- The work environment is becoming increasingly noisy and distracting, impacting overall productivity
- People are reluctant to come to the office to work
- Your company's brand and culture have evolved, and your office space no longer sends the right message to your employees and clients
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Why budgeting feels so uncertain (and how we fix that)
The budgets for the office design and build projects depend on several variables: the existing building conditions, the complexity of the technical systems and architectural design, and the quality of finishes and materials used.
Most online estimates for office fit-outs in Brussels range wildly: in 2023, CBRE mentioned €900 per m2; in 2025, Cushman & Wakefield gives a range of minimum €1,038 per m2 and maximum €2,535 per m2. That's not helpful when you're trying to make informed decisions.
What makes workspace budgeting tricky:
- You don't know what you don't know (this might be your first renovation project)
- Every space has unique conditions and requirements
- Quality levels and finish choices dramatically affect costs
- Unconsidered needs often emerge during the process
Based on our own experience and past projects, the cost of interior design and build projects is on average €700 per m2, depending on the existing space conditions and other variables we'll help you get more clarity on in this article. Let's start!
The first question to ask is:
How much space do you need?
The key metric here is the number of fixed workspaces you’ll need. Knowing that, you can use the recommended 10-12 m2 per person to calculate the space required.
Now, let’s get into the calculations. Estimate what the upcoming 5 years of growth of the company will look like:
- How many people you might end up hiring?
- Will you need to provide permanent desks, hot desks or a hybrid system?
- What are the different functions on your team you have now and will have in the future and do they need different kinds of spaces, like call rooms for salespeople or quiet areas for developers?
Some departments would be attending 5 days a week whilst others might only attend 2 or 3 days. Once you worked out your business and growth plan with the approximate number of people in individual departments, you’ll have the correct space estimation.
Let's say, you need 50 fixed spots to accommodate the entire team now, and in the next year, you plan to add 20 more spots. 70 spots per 10-12 m2 per person make it 700-840 m2.
With hybrid and agile workspaces, you can save money on leasing the office space and on the cost of fit-out. We can help you with designing an office space that provides a mix of private spaces for concentrated work and collaborative activities and helps with the overall well-being of your staff to increase productivity.
Knowing this, you can answer the following question:
What are your custom requirements?
To get to an accurate estimate, several factors must be taken into account, including but not limited to:
- Do you require large open-plan areas or more cellular offices?
- How many meeting rooms do you require? How many people usually attend those meetings?
- What is the current state of the building’s facilities?
- Do you receive a landlord contribution towards any part of your fit-out works?
- How many workstations are needed for the space?
- What type of furnishings and design elements can then be adjusted to your budget?
These and many other factors can significantly impact the total cost of the project. When we start working with you, each of them helps us arrive at an accurate evaluation, which is only possible after the design phase is completely finished.
The good news for you, at this consideration stage, is that we have recently developed a Pricing Tool based on our previous projects' average costs, to give you clarity from day one, not surprises on day 100. This remarkable tool allows us to get a more accurate initial budget estimate. All we need to know is an idea of the surface of your existing or future office. And even if you don’t have that or the growth plan, we can help you figure that out together. You can’t imagine how many times we did it right on the call with the client!
If you are looking for a more precise rough estimate or have questions, drop us a message! This is the kind of magic we can do for you:
Ready to move forward with confidence?
You shouldn't have to choose between a workspace your team loves and staying on budget. You also shouldn't feel anxious about surprise costs or whether you're making the right decisions.
Our process gives you certainty:
✓ Transparent pricing from day one (no hidden surprises)
✓ Collaborative workshops to uncover what your team truly needs
✓ Expert guidance through every decision
✓ Delivery on time and on budget
✓ A workspace that adapts to your biggest priorities
Democratic access to people-centered workspaces shouldn't be complicated or uncertain. It should be a partnership where you feel confident, informed, and genuinely excited about creating an environment where your team thrives.
