When comparing a traditional leased office with a managed office, it is easy to focus on the headline rent or monthly fee. But the way services are charged can have a significant impact on your overall occupancy cost and how predictable that cost is.
In a traditional FRI lease, many costs associated with running and maintaining a building are recovered through a service charge. In a managed office, comparable services are typically covered through an agreed service level agreement (SLA), often as part of a single monthly charge.
So, when looking at service charge vs SLA in the UK, the useful comparison is not simply which figure is lower. It is what each charge covers, how it is calculated, what can change and where the financial risk sits.
- Service charge vs SLA (side by side)
- How each works in practice
- Trade-offs and what to watch for
- How to compare a quote on a like-for-like basis
- Find an office that fits your requirements
Service charge vs SLA in the UK, side by side
The two mechanisms can look similar on a quote but work quite differently in practice.
| Service charge, traditional FRI lease | SLA, managed office | |
| What it covers | Costs associated with specified building services and common parts | An agreed package of services provided as part of the managed office |
| Typical inclusions | Building services, common parts, lifts, security, building insurance and managing agent fees | Reception, cleaning, utilities, internet, furniture, IT and meeting room access |
| How it is billed | Often through estimated on-account payments | Typically through an agreed monthly figure |
| Who controls the cost | Landlord/managing agent controls relevant expenditure, subject to the lease | Provider controls delivery of agreed services, subject to the agreement |
| Reconciliation | Actual expenditure may be reconciled against payments made on account | Usually less dependent on annual reconciliation, although the agreement may provide for price reviews |
| Contractual basis | Set out in the lease and service charge provisions | Set out in the managed office agreement and SLA |
| Cost changes | Can reflect changes in actual expenditure and the terms of the service charge | Can result from price reviews, additional services or changes to scope |
| Termination | Governed by the lease term, break provisions and other lease obligations | Governed by the agreement’s term and notice provisions |
The key difference is therefore one of cost structure and risk. A service charge can vary with the underlying cost of running a building, while an SLA generally gives you a defined package of services for an agreed charge.
Neither mechanism should be assessed in isolation from the contract behind it.
How each works in practice
Service charge in a traditional FRI lease
Under a traditional FRI lease, the service charge is used to recover specified costs associated with the operation and maintenance of the building and its shared areas. The precise costs that can be recovered depend on the lease and service charge provisions.
Typical items can include:
- Building services
- Maintenance of common parts
- Lifts
- Security
- Building insurance
- Managing agent fees
The amount shown in a service charge estimate is not necessarily the final amount you will pay. Occupiers may make payments on account based on estimated expenditure, followed by a year-end reconciliation against actual costs.
That distinction matters when comparing office costs. A service charge that looks relatively low on an initial quote may not represent the final annual cost if expenditure is higher than anticipated.
It is also worth checking whether the service charge is capped or uncapped.
A capped service charge can provide greater predictability, but the wording of the cap matters. Check what expenditure is covered by the cap and whether certain costs sit outside it. With an uncapped arrangement, changes in building expenditure can create greater uncertainty.
You should also check whether the service charge includes contributions to a sinking fund. These contributions can form part of the cost you need to account for when assessing the overall financial commitment.
The managing agent may administer the service charge and manage the relevant building services, but the occupier’s liability is ultimately determined by the contractual terms.
SLA in a managed office agreement
A managed office agreement takes a different approach to recurring services.
Rather than paying separately for a range of building and office services, the occupier agrees a defined package with the provider. The service level agreement sets out the scope of those services and the standards to which they will be provided.
Depending on the agreement, an SLA can cover services such as:
- Reception
- Cleaning
- Utilities
- Internet
- Furniture
- IT
- Meeting room access
This can make the monthly cost easier to understand because more of the services an occupier uses are brought together under one commercial arrangement.
However, “included” does not necessarily mean unlimited or permanently fixed.
The important thing is to read the scope of services. An SLA may define service limits, exclusions or circumstances where additional charges apply. It may also contain provisions allowing the price to change following a change of scope or a scheduled price review.
For example, if your requirements change significantly during the agreement, you need to understand whether additional services can be added and how those services will be priced.
That is why the headline monthly figure is only the starting point when assessing a managed office agreement UK occupiers are considering.
Trade-offs and what to watch for
Cost transparency, control and risk
The main difference between a service charge and an SLA is not simply how the bill arrives. It is where uncertainty sits.
With a traditional office service charge, the underlying expenditure can change. Estimates can be reconciled against actual costs and an uncapped service charge can leave the occupier exposed to increases in relevant expenditure.
There can also be costs that are easy to overlook when assessing the headline figure. Sinking fund contributions, for example, may form part of the service charge structure and should be included when modelling total cost.
With an SLA, the attraction is often greater cost visibility. A defined monthly figure can make budgeting more straightforward, particularly when services that would otherwise need to be considered separately are included.
But that visibility depends on the scope being clear.
If the SLA does not cover everything your team needs, the apparent simplicity of the monthly figure can be misleading. Look for exclusions, usage limits, additional service charges and provisions allowing the provider to review the price.
The question for finance or procurement teams is therefore not “Which has the cheaper service charge?” It is “Which gives us the clearest view of our likely total cost and the risks around it?”
That is the more useful way to think about lease cost transparency.
Flexibility, term and exit
The service cost mechanism also needs to be considered alongside the wider contractual commitment.
A traditional lease can involve a longer term, with the lease setting out any break provisions and the obligations that apply during and at the end of the term.
A managed office agreement has its own term and notice provisions, which can provide a different balance of flexibility. But the precise arrangement varies, so these provisions should be compared rather than assumed.
When assessing the two options, ask:
- What is the initial term?
- Is there a lease break or termination right?
- What notice is required?
- Can the recurring charge change during the term?
- What happens if your space requirements change?
- Which services can be added or removed?
- Are there costs that sit outside the quoted figure?
This helps separate price certainty from contractual flexibility. They are related but not the same thing.
How to compare a quote on a like-for-like basis
The most reliable way to compare a traditional office with a managed office is to work from the underlying schedules rather than the headline figures.
For a traditional lease, obtain the service charge schedule and review it alongside the lease. For a managed office, obtain the SLA or schedule of services and review it alongside the commercial terms.
Then work through five steps.
1. List the recurring costs
Start with every cost that applies to the traditional option and every cost included in the managed office proposal.
Don’t assume that a service appearing in one quote is included in the other.
2. Align the inclusions
Match the services line by line.
If the managed office includes cleaning, utilities, internet, furniture and meeting room access, identify the equivalent costs you would need to account for separately under the traditional option.
Equally, identify services covered by the traditional building’s service charge that are not included in the managed office SLA.
3. Flag variable or potentially uncapped costs
Pay particular attention to:
- Uncapped service charges
- Year-end reconciliation
- Sinking fund contributions
- SLA exclusions
- Additional usage charges
- Change-of-scope provisions
- Price review provisions
These are the areas most likely to undermine a simple comparison of headline costs.
4. Model the annual all-in cost
Once the inclusions are aligned, calculate the expected annual cost of each option.
For a traditional lease, account for the service charge alongside base rent and other relevant occupancy costs, including business rates where applicable. For a managed office, start with the agreed monthly figure and add any services or costs that fall outside the SLA.
The aim is not to predict every future expense. It is to identify the assumptions and exposures that could materially change your budget.
5. Compare the contractual risk
Finally, ask where the uncertainty sits.
A traditional service charge can expose the occupier to changes in relevant building expenditure and reconciliation. A managed office can provide a more consolidated cost structure but makes the scope and price-review provisions in the SLA particularly important.
That gives you a more meaningful comparison than simply putting two monthly figures next to each other.
Find an office that fits your requirements
If you’re comparing options now, you can use Hubble to search for private office space in London and compare available office options. If you’d rather have help working through the differences, Hubble’s free consultancy service can help you understand what an operator’s SLA covers and identify the questions to ask before committing.
The goal is not to decide that one cost structure is universally better. It is to understand what you are paying for, what can change and what financial risk you are taking on—then compare the options on a genuinely like-for-like basis.
