How Much Does an Office Fit Out Cost in the UK? 2026 Price Guide

9 August 2026 / Fit Out

The cost of an office fit out can vary considerably. The size and condition of the space, quality of finishes, mechanical and electrical requirements, furniture, technology and even the location of the building can all influence the final budget.

For businesses planning a new workplace, this can make early budgeting difficult. Two offices of exactly the same size can have very different project costs depending on what needs to be done and the standard of workplace being created.

Current industry benchmarks also vary because not every published cost figure includes the same scope of work. Some estimates focus primarily on construction, while others incorporate furniture, technology, professional fees and other project costs.

This 2026 guide explains typical UK office fit out costs, what those costs can include, the factors that have the greatest impact on your budget and how to achieve better value from your project.

How Much Does an Office Fit Out Cost Per Square Foot in 2026?

Current UK industry benchmarks demonstrate just how widely office fit out costs can vary according to specification and location.

Cushman & Wakefield’s 2026 UK Office Fit Out Cost Guide reports the following indicative costs:

These figures are useful benchmarks rather than fixed prices.

An office with relatively straightforward requirements will have a very different cost profile from a design-led headquarters incorporating extensive mechanical and electrical works, bespoke joinery, premium finishes, sophisticated AV systems and specialist furniture.

The scope behind any £/sq ft figure therefore needs to be understood before using it to establish a project budget.

Why Do Office Fit Out Cost Estimates Vary So Much?

Searching for an average office fit out cost can produce dramatically different figures.

This doesn’t necessarily mean one estimate is wrong.

Different cost guides may include different elements within their calculations. One might primarily represent construction costs, while another may include furniture, professional fees, AV equipment and other elements required to make an office operational.

There are also significant differences between:

• CAT A and CAT B projects
• New and existing buildings
• Basic and premium specifications
• Regional and London projects
• Refurbishment and complete fit outs
• Projects requiring significant M&E alterations
• Standard and bespoke furniture
• Conventional and technology-intensive workplaces

For that reason, the most useful question isn’t simply “What is the average cost per square foot?”

It’s “What will be included within that cost for my particular office?”

What Is Included in an Office Fit Out Cost?

Before comparing quotations or industry benchmarks, establish exactly what works are included.

If you’re still at the early planning stage, understanding what an office fit out involves can help you determine which elements need to be incorporated into your budget.

Depending on the project, office fit out costs can include:

Space Planning and Design

Effective space planning determines how the available floor area will be used before construction begins.

This may include:

• Workplace strategy
• Space planning
• Floor plans
• Concept design
• Detailed design
• Material specification
• Furniture planning

Investing time in this stage can prevent expensive alterations once work has started.

Partitions, Walls and Doors

Creating meeting rooms, offices, quiet spaces and other enclosed areas may require new partitions and doors.

The cost can vary significantly depending on whether the design uses conventional solid partitions, glazed systems, acoustic treatments or specialist finishes.

Flooring, Ceilings and Finishes

Flooring and finishes have a major influence on both the appearance and cost of a workplace.

Projects may incorporate carpet tiles, luxury vinyl tiles, timber finishes, feature ceilings, wall finishes, decoration and bespoke elements.

Mechanical and Electrical Services

M&E can represent a substantial proportion of an office fit out budget.

Requirements can include:

• Electrical distribution
• Power outlets
• Lighting
• Heating and cooling
• Ventilation
• Fire alarms
• Plumbing
• Sprinkler alterations

Existing building services and the demands of the proposed layout can significantly affect this part of the budget.

Kitchens and Breakout Areas

Modern workplaces increasingly provide spaces away from traditional desks.

Tea points, kitchens, cafés, breakout areas and collaboration spaces can involve plumbing, appliances, fitted joinery, furniture and specialist finishes.

A simple tea point will naturally cost considerably less than a large staff café or hospitality-style breakout area.

Office Furniture

Desks, task chairs, meeting tables, storage and breakout furniture all need to be considered.

Furniture expenditure depends on employee numbers, product specification, ergonomics and how much existing furniture can realistically be reused.

IT, Data and AV

Technology requirements have become an increasingly important part of workplace planning.

Costs might include:

• Data cabling
• Wi-Fi infrastructure
• Meeting-room AV
• Video conferencing
• Screens and displays
• Room-booking technology
• Access control
• Security systems

Businesses with sophisticated technology requirements should establish these costs early rather than treating them as an addition towards the end of the project.

Professional and Project Fees

Depending on the procurement route, additional costs may include consultants, project management, surveys, approvals and other professional services.

These need to be identified when comparing budgets so that you’re comparing like with like.

CAT A vs CAT B Office Fit Out Costs

The condition in which you receive an office has a major impact on what you’ll need to spend before occupying it.

CAT A Fit Out

A Category A fit out typically provides the basic internal specification of a commercial space.

Depending on the building, this can include elements such as:

• Raised floors
• Suspended ceilings
• Basic lighting
• Mechanical services
• Fire detection
• Basic electrical distribution
• Finished internal surfaces

The space is functional at a building-services level but generally hasn’t been customised for a particular occupier.

CAT B Fit Out

A Category B fit out takes the space from this basic specification and creates the finished workplace used by the business.

This can include:

• Meeting rooms
• Private offices
• Workstations
• Kitchens
• Breakout areas
• Branding
• Furniture
• Specialist lighting
• AV and technology
• Acoustic treatments
• Bespoke joinery and finishes

Because CAT B is tailored to the individual occupier, its cost range can be particularly broad.

What Affects the Cost of an Office Fit Out?

While floor area matters, size alone isn’t enough to predict the final price.

1. Size of the Office

Larger offices generally have higher total project costs, but the relationship isn’t always linear.

Certain fixed project costs can be spread across a greater floor area on larger schemes, while smaller projects may still require substantial infrastructure work despite having fewer square feet.

2. Condition of the Existing Space

An office that’s already in good condition and close to your desired specification may require relatively limited intervention.

At the other end of the spectrum, an outdated or stripped-back space could require significant work to mechanical systems, electrics, flooring, ceilings and internal layouts before workplace finishes are even considered.

This is why assessing a potential office before committing to a lease can be valuable.

3. Level of Specification

Material and product choices can dramatically change the budget.

A functional workplace using standard finishes and furniture has a very different cost profile from a premium headquarters incorporating bespoke joinery, specialist lighting, high-end furniture and hospitality-style spaces.

The right specification isn’t necessarily the most expensive one. It should reflect how the business uses the space and where additional investment will provide meaningful value.

4. Mechanical and Electrical Requirements

M&E is one of the most significant variables in many projects.

An existing system might only require relatively minor alterations. Alternatively, a new layout or increased occupancy could require extensive changes to power, lighting, cooling, ventilation or other services.

Identifying these requirements early makes budgeting considerably more reliable.

5. Office Furniture

Furniture costs depend on both quantity and specification.

A business may be able to reuse existing furniture, replace only selected items or specify an entirely new furniture package.

When deciding what to retain, consider more than the immediate saving. Existing furniture also needs to work with the new layout and remain suitable for employees over the expected life of the workplace.

6. Technology

Meeting rooms and collaborative spaces increasingly depend on integrated technology.

Video conferencing, room-booking systems, digital displays and sophisticated AV installations can increase project costs, particularly across larger workplaces with numerous meeting spaces.

7. Acoustics

Open-plan offices, meeting rooms and collaborative areas can all require acoustic treatment.

This might include acoustic wall panels, ceiling treatments, screens, specialist partitions and sound-insulated meeting rooms.

Poor acoustics can significantly affect how successfully employees use a workplace, so reducing the specification purely to save money can be a false economy.

8. Location

Construction and fit out costs aren’t identical throughout the UK.

Labour rates, contractor availability, logistics and regional market conditions all influence pricing.

Current industry benchmarks demonstrate this clearly, with London typically carrying a substantial premium over regional cities.

9. Project Programme

A compressed programme can increase costs.

Additional labour, out-of-hours working, expedited procurement and more complex project coordination may all be necessary when deadlines are particularly tight.

Allowing sufficient time for design, procurement and construction can create more opportunities to control costs.

Example Office Fit Out Budgets

Applying a single £/sq ft figure to every project isn’t advisable, but example calculations demonstrate how specification can affect total expenditure.

The table below uses illustrative rates of £125, £200 and £300 per square foot.

These are illustrative calculations, not quotations.

For example, a 5,000 sq ft project doesn’t automatically cost £1 million simply because a £200/sq ft benchmark has been selected. The actual cost depends on the scope, existing condition, specification and what is included within the calculation.

This is precisely why early cost planning is so important.

Office Fit Out Costs by UK Location

Regional variations should also be considered when benchmarking a project.

Cushman & Wakefield’s 2026 figures show medium-specification costs of approximately:

• Birmingham: £200/sq ft
• Glasgow: £192/sq ft
• London: £243/sq ft
• Manchester: £210/sq ft

London remains the most expensive of these locations, but substantial regional projects can still require significant budgets.

Businesses planning an office in Leicester, Nottingham, Lincoln or elsewhere in the Midlands should therefore avoid relying solely on London benchmarks or assuming national averages accurately represent local procurement conditions.

A project-specific assessment provides a much more meaningful figure.

Why Office Fit Out Costs Remain High in 2026

Office fit out pricing has undergone a structural change since the beginning of the decade.

Current industry reporting indicates that UK costs remain substantially above pre-pandemic levels.

Several factors continue to affect pricing:

Labour

Skilled construction labour remains a significant cost pressure across the industry.

Mechanical and Electrical Packages

M&E systems are increasingly important to modern workplace performance and can account for a substantial portion of project expenditure.

Higher Workplace Expectations

Businesses increasingly expect workplaces to provide more than rows of desks.

Collaboration spaces, high-quality kitchens, improved acoustics, sophisticated meeting rooms, employee wellbeing features and integrated technology all increase the specification compared with many traditional offices.

Supply Chain and Procurement Risk

Global supply-chain disruption and geopolitical uncertainty can affect the price and availability of equipment and materials.

Long-lead items should therefore be identified early within the project.

Hidden Office Fit Out Costs to Consider

A budget can appear comprehensive while still overlooking costs that become apparent later.

Potential additional expenditure can include:

• Landlord approvals
• Surveys
• Planning or statutory requirements
• Building-control requirements
• Furniture delivery and installation
• IT equipment
• AV hardware
• Specialist security
• Temporary storage
• Moving costs
• Cleaning
• Signage
• Waste disposal
• Out-of-hours working
• Contingency
• VAT where applicable

There may also be costs associated with leaving your existing premises, particularly where lease-end dilapidations are required.

Looking at the entire relocation or refurbishment rather than the construction contract alone provides a much more realistic picture of total expenditure.

How Can You Reduce Office Fit Out Costs?

Reducing costs doesn’t have to mean compromising the finished workplace.

Good cost management is primarily about spending money where it creates the greatest value.

Establish the Budget Early

Set a realistic budget before design decisions become too advanced.

Designing a £1 million workplace against a £600,000 budget inevitably leads to substantial redesign and lost time.

Prioritise Requirements

Separate essentials from desirable additions.

Invest heavily in the things that materially affect workplace performance while being more economical in areas that have less impact.

Reuse Suitable Furniture

Existing furniture can sometimes be incorporated into the new workplace.

However, don’t retain furniture simply because you already own it. The cost of moving and adapting unsuitable items may outweigh the saving.

Work With the Existing Building

Where possible, retaining useful existing infrastructure, partitions or finishes can reduce expenditure and waste.

This needs to be balanced against the long-term requirements of the workplace.

Make Decisions Early

Late design changes are usually more expensive than changes made on paper.

Finalising layouts, furniture, finishes and technology early gives the project team more control over procurement and reduces the likelihood of expensive alterations during construction.

Consider Whole-Life Value

The cheapest product isn’t necessarily the lowest-cost option over the life of the workplace.

Durable flooring, ergonomic furniture and energy-efficient systems may require greater initial investment but provide better long-term value.

Choosing a Fit Out Company and Comparing Quotes

Price is important, but it shouldn’t be the only consideration when appointing a contractor.

Understanding what a fit out company does can help you determine the level of support you need and whether quotations from different providers genuinely cover the same scope.

When comparing proposals, consider:

• What is included and excluded?
• Is the specification clearly defined?
• Are furniture and technology included?
• Are professional fees included?
• Who is responsible for design?
• Who manages subcontractors?
• How are changes controlled?
• What contingency has been allowed?
• What is the proposed programme?
• What happens after handover?

A lower headline price can become more expensive if essential elements have been excluded and added later.

Comparing detailed scopes rather than bottom-line totals gives you a far better understanding of value.

How Much Contingency Should You Allow?

No two projects carry exactly the same level of risk, so there isn’t a universal contingency percentage suitable for every office fit out.

The amount required depends on factors such as the condition of the building, how complete the design is, the complexity of services and how much uncertainty remains when the budget is prepared.

Older buildings or projects where existing services haven’t been fully investigated may require greater contingency than straightforward works in a well-documented modern office.

The important point is to include contingency from the beginning rather than treating every unexpected cost as an overspend.

When Should You Start Budgeting for an Office Fit Out?

As early as possible.

Ideally, cost planning should begin while you’re assessing your workplace requirements and, where relevant, before committing to new premises.

Early budgeting allows you to:

• Compare potential offices more accurately
• Understand the true cost of occupying a space
• Establish an appropriate specification
• Identify expensive infrastructure requirements
• Consider alternative layouts
• Allow sufficient time for procurement
• Align the project with available capital

This is particularly important when an office fit out forms part of a wider relocation.

An apparently attractive lease can become less appealing if the building requires substantial investment before employees can occupy it.

Frequently Asked Questions

What is the average office fit out cost per square foot in the UK?

There isn’t one figure that accurately represents every UK office fit out. Current 2026 industry benchmarks vary significantly according to location and specification, with published examples ranging from around £117/sq ft for lower-specification regional projects to more than £350/sq ft for high-specification London projects.

Always establish what is included within a benchmark before applying it to your own project.

Is a CAT B fit out more expensive than CAT A?

CAT B generally involves more occupier-specific work because it creates the finished workplace, including meeting rooms, furniture, finishes, branding and technology. However, costs depend on the starting condition and scope of each individual project.

Does office furniture form part of a fit out budget?

It can, but not every contractor or cost guide includes furniture within its quoted £/sq ft rate. Confirm whether furniture is included when comparing budgets.

How long does an office fit out take?

Timescales depend on size, complexity, design development, approvals and procurement. Smaller straightforward projects can be completed considerably faster than large or highly bespoke workplaces. The programme should be established during the early planning stages rather than relying on a generic timeframe.

Can you fit out an office on a limited budget?

Yes. A clearly defined budget allows the design and specification to be developed around your priorities. Reusing suitable existing elements, controlling specification and making decisions early can all help achieve better value.

Should I get an office fit out quote before signing a lease?

Where possible, obtaining professional input before committing to premises can be extremely valuable. It can identify potential infrastructure requirements and provide an indication of how much investment will be needed to make the office suitable for your business.

Planning Your Office Fit Out Budget

An office fit out represents a significant investment, but the £/sq ft figure alone tells only part of the story.

The condition of the building, specification, mechanical and electrical requirements, furniture, technology, programme and location can all materially affect the final cost.

For businesses planning a project in 2026, the most effective approach is to establish the required scope early, understand exactly what is included within each estimate and develop the design alongside a realistic budget.

Stirling Interiors provides comprehensive office fit out services, combining workplace design, cost planning, project management and delivery to help businesses create offices that balance functionality, quality and commercial value.

Whether you’re considering a new office, refurbishment or complete workplace transformation, involving an experienced project team early can provide much greater clarity over likely costs before major decisions are made.