Leasing office space is a big step for any growing business, but it’s not just about finding the lowest rent on the market.
Whether you’re upgrading to a new office or taking the plunge with your very first space, there’s more to consider than meets the eye.
Hidden costs can quickly add up, so understanding the full financial picture is key to making smart decisions that support your business goals.
From fit-out costs to maintenance and dilapidations, knowing what’s included (and what’s not) will help you avoid any nasty surprises.
We’ve broken down the need-to-know details so you can lease with confidence and clarity.
Let’s get into it.
What is leased office space?
A leased office space is a workspace that a business rents for a set period, under legally agreed terms.
Unlike a serviced office or coworking space, where much of the day-to-day responsibility falls to the provider, leased offices hand the reins (and the responsibilities) to you.
This means you’ll likely be managing the fit-out, maintenance, and operational costs yourself.
On the upside, this allows for customisation, giving you the freedom to create a space that feels uniquely yours.
But it’s worth remembering that the financial commitments don’t stop at the headline rent — there are plenty of hidden costs to factor in.
It’s also important to know how a lease differs from a licence.
A licence is quick and simple to arrange, usually doesn’t need legal advice, and offers less protection.
A lease, on the other hand, is more complex but gives you stronger legal security.
It takes longer to finalise (often involving a real estate lawyer) and typically begins once key terms have been agreed with the landlord.
Ultimately, choosing a leased office gives you control and flexibility — but it’s vital to understand the full financial and legal implications before signing on the dotted line.
➡️ Read more: Office Leases: Your Complete Guide
What's the difference between renting and leasing?
Renting and leasing both involve paying for the use of a property, but they differ in commitment and flexibility.
Renting is typically short-term — month-to-month agreements — giving you the freedom to move on with minimal notice.
However, this flexibility means landlords can also change the terms with proper notice, usually 30 days.
Leasing, on the other hand, is a longer-term arrangement, often spanning 3-5 years, with set terms that provide stability — although shorter leases are on the rise.
During a lease, your rent and responsibilities are locked in, protecting you from unexpected changes.
This makes leasing a better option for businesses seeking predictability and the ability to customise their space to suit their needs.
Both options may involve credit checks, and a poor credit history could lead to higher security deposits.
Ultimately, the choice between renting and leasing depends on your business’s needs for stability, flexibility, and long-term planning.
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Hidden costs of leasing office space
The advertised rent cost may catch your eye, but it’s only part of the story.
Here are the key hidden costs to consider when leasing an office space:
Base rent and service charges
Base rent is the primary expense, but service charges for shared building amenities, cleaning, and maintenance can add up.
Businesses should evaluate the total cost of occupancy, not just the base rent.
Business rates
Business rates are local taxes levied on commercial properties.
They can vary significantly based on location and property size.
For example, office spaces in London may incur substantially higher rates than those in regional cities.
It’s advisable to check rates with the local council to avoid surprises.
Substantial deposits
Landlords often request deposits to mitigate risks, particularly for startups or businesses without a solid financial history.
Deposits can equate to up to 12 months’ rent in high-demand areas, which could strain your cash flow.
Fit-out costs
Customising your office to meet your brand and operational needs can be costly.
Understanding these costs upfront is crucial for budgeting effectively.
➡️ Dig deeper: How Much Does an Office Fit-Out Cost?
Utilities, cleaning, and maintenance
Unlike serviced or managed offices, tenants in leased spaces are often responsible for utilities, cleaning, and maintenance.
These operational costs can fluctuate, making them harder to predict.
IT infrastructure setup
Setting up robust IT systems is another expense to account for, especially for tech-heavy businesses.
This includes cabling, networking, and security systems, which can involve substantial upfront investments.
Legal fees and negotiations
Lease agreements require professional legal review, adding to initial costs.
On top of this, you may also need to account for stamp duty on commercial leases, which is a tax paid on certain lease agreements based on the property value and lease duration.
This can be a significant cost, particularly for longer leases or prime locations.
Dilapidations
At the end of a lease, tenants are often required to return the space to its original condition.
This can mean expensive restoration costs, particularly for spaces with extensive customisations.
Top tip from the Tally team: Estimate an additional 50-85% of your base rent to cover hidden costs, as suggested by industry experts.
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Is office lease a period cost?
Yes, an office lease is a period cost — but it’s not just that.
The monthly rent is a recurring expense you’ll budget for, but leasing an office often comes with hidden, long-term costs.
Think fit-outs to customise the space and dilapidations at the end of the lease, which can require significant upfront and end-of-term investments.
These capital commitments can sneak up on you, especially if your business experiences some temporary financial difficulties.
Poalo Piscatelli, Owner and CEO of Alarm Relay, shared his experiences: “Initially, the [leased office] space worked well; it was large enough for our team and had room for equipment. However, as we expanded, we realised the lease terms were restrictive, and we struggled with the high costs of maintaining the space. The impact was significant. We faced cash flow challenges as we had to allocate funds to cover the lease and maintenance rather than investing in staff or new technology.”.
So, while the rent may feel like the obvious cost, it’s only part of the bigger financial picture.
Is it better to buy or lease an office?
Whether to buy or lease an office depends on your business goals and budget.
Leasing offers flexibility, lower upfront costs, and the chance to customise your space, making it ideal for growing businesses or those needing agility.
However, it doesn’t build equity, and long-term costs — like operational expenses, fit-outs, and dilapidations — can add up.
While things have changed since the 1990s, there’s still a lot less flexibility with leased offices than some business owners would like.
As Matt Little, Founder and MD of Festoon House, said, “While a leased office provides stability and control, it may tie you down if your team size or work style changes.”.
Buying, on the other hand, is a bigger initial investment but gives you ownership and potential long-term savings.
The choice comes down to whether you value flexibility or long-term financial stability.
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How much does it cost to lease office space?
The cost of leasing office space in the UK varies significantly based on location, office grade, and market demand.
Here's a snapshot of average annual costs per square foot in key cities:
- London: West End: £150 per sq ft. City: £85 per sq ft.
- Manchester: £43.50 per sq ft.
- Birmingham: £42.50 per sq ft.
- Bristol: £40 per sq ft.
- Brighton: £40 per sq ft.
- Edinburgh: £38.50 per sq ft.
- Glasgow: £38.50 per sq ft.
- Sheffield: £30 per sq ft.
What are the operational cost implications?
Operational costs can significantly impact the overall cost of leasing office space.
While energy-efficient measures, like those in green leases, can lower utility bills over time, they often require a substantial initial investment.
Think upgrades like advanced HVAC systems or LED lighting.
On top of that, traditional leases typically leave tenants responsible for maintenance, cleaning, and utilities, which can add up quickly.
Understanding these costs is essential for effective financial planning — after all, the headline rent is only part of the story.
➡️ Want the full story? Read our report on the Cost of Office Space in London (2024)
Leasing office space can feel like a big leap, but with the right preparation, it’s a step that can propel your business forward.
From hidden costs like fit-outs and dilapidations to legal considerations such as stamp duty, there’s a lot to factor in beyond the headline rent.
The good news? You don’t have to figure it out alone.
At Tally Workspace, we’re here to help you navigate the ins and outs of leasing with confidence and clarity.
Got questions or need expert guidance?
Get in touch with our team today, and let’s find the perfect office space to support your business goals.
