Office Fit Out & Office Refurbishment Costs | 2025 Guide

£48 Per Sq Ft average
£82 pdf - high spec
£38 pdf - low spec
£15 psf - dilaps

£5090 Per person average
£8690 - High Spec
£4030 - Low Spec
Furniture £750 - £1250 Per person

£520 Per Sq Metre. Average CAT B
£850 PSM - High Spec
£385 PDM - Low Spec

133 Sq Ft Per Person Ave
Low = 75 Sq ft
High = 180 Sq ft
Open Plan Lowest = 50 Sq Ft Per Person

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Office Fit Out: Set The Standard for Workplace Transformation

Looking to upgrade your workspace? Explore our Office Fit Out London and Office Refurbishment London services for industry-leading insight and cost control. When it comes to office fit outs and refurbishment projects, getting the best value per square foot isn’t just a smart move it’s essential for your business.

At Fusion Office Design, we know that every office fit is an opportunity to maximise business performance, unlock creativity, and make a real statement for your team, your brand, and your bottom line.

Office Fit: The Heart of Modern Workspace Solutions

Your office fit journey should never be one-size-fits-all. Whether you’re planning a brand new office space or improving an existing space, our process puts your business needs first. We handle every detail, from space planning, project management, and bespoke joinery to delivering high quality furniture, AV systems, and those little touches that make a workspace pop.

Curious about the costs involved? Visit our Office Fit Out London page for a detailed breakdown and expert tips on building a productive, inspiring workspace.

Basic Office Fit or High Spec Office Fit: Choosing the Right Level

It’s not just about fit out costs. It’s about choosing the level of finish and customisation that fits your business. A basic office fit is great for startups or those wanting to refresh their look with cost effective, high quality furniture and minimal disruption. For those who want a real statement, a high spec office fit delivers a completely new space, luxury materials, and customisation required to attract top talent and clients.

See examples of each at our Office Fit Out London and Office Refurbishment London case studies.

Office Refurbishment Costs: What You Really Need to Know

Calculating your office refurbishment costs shouldn’t feel like chasing shadows. Here’s how it stacks up in 2025:

Basic office fit out: From £40 per square foot (sq ft) – ideal for a blank canvas approach or budget-conscious upgrades
Mid-range fit out: £65 to £120+ per sq ft – a solid balance of value, comfort, and visual impact
High spec office fit: £150+ per sq ft – premium office spaces with customisation required, bespoke joinery, and high end finishes

But costs vary widely depending on design complexity, the size of your office space, structural changes, high quality materials, and any additional costs like power supply or specialised equipment.

Need a tailored answer? Our Office Refurbishment London service gives you the definitive answer for your specific project.

Office Fit Out Project: Key Factors & Cost Drivers

Every office fit out project we deliver starts with your project brief, business objectives, and a thorough understanding of your unique needs. Your final fit out cost will be affected by many factors, such as:

New office space vs. existing space
Required fit out services (meeting room, AV systems, HVAC, etc.)
Office occupancy space and future growth
Premium office spaces or basic office needs
Square metre and sq ft calculations
Interior space suitable for collaboration, focus, and creativity
Project managers, workspace planners, and interior design experts guiding your fit out journey

Want to see how all this comes together? Check out our Office Fit Out London project gallery.

Office Fit Out Costs Per Square Foot

Savills suggest a price range for CAT B office fit-out costs of £40 – £60 per square foot (£430 per square metre – £640 per square metre) for a basic specification, £60 – £80 psf for a mid-range scheme, £80 – £100 psf for a high quality project and £120 + for projects with outstanding design and quality. Typically these figures include separate professional fees for architects, external project management, QS and cost control that together account for the difference between Fusion design and build fit-out costs and the ‘traditional’ examples quoted by Savills.

Fit Out Process: Your Roadmap to a Better Office

The fit out process is where the magic happens. Here’s how Fusion makes it work:

Project Brief – Define business objectives, company culture, workspace planners involved, and desired outcomes.
Space Planning & Design Complexity – Map out your office space, balancing collaboration, privacy, and wow factor.
Detailed Cost Plan – Transparent breakdown covering all costs involved, from basic office fit to high spec extras.
Build Process – Expert team and contractors deliver, manage, and coordinate all aspects: project management, construction, and installation.
Handover & Support – You move into a workspace built for productivity, well being, and long-term growth.

Want the inside scoop? Our Office Refurbishment London guide explains every step.

High Spec Office Fit: Making a Real Statement

If you want a high spec office fit, prepare to impress. This level of office fit out features:

Customisation required for your brand, team, and vision
High end finishes, premium materials, and bespoke joinery
Specialist features such as high quality furniture, meeting rooms, and advanced AV systems
Project management by experienced professionals who deliver complete, stress-free results

For clients who want to set the bar, check our Office Fit Out London portfolio.

The Factors Influencing Your Investment

No two office fit-out projects are alike. Costs can vary widely based on the square footage of the workspace and the specific requirements of your fit-out or refurbishment. Whether you’re considering a typical office fit or a mid-range office makeover, the price is influenced by several factors, including:

Design Complexity

The intricacy of your chosen design and the level of customisation required.

Quality of Materials

Material quality impacts costs from basic office essentials to high-end finishes.

Technological Needs

Integrating advanced IT infrastructure or specialised equipment can affect the budget.

Furniture Selection

Opting for new, high-quality furniture or reusing existing pieces significantly affects overall costs.

Why Choose Fusion Office to Transform Your Office Space?

When creating a workspace that meets and exceeds expectations, Fusion Office Design specialises in high-spec office fit-outs that transform ordinary offices into extraordinary workplaces. A high-spec office fit-out by Fusion Office Design is more than just a refurbishment; it’s a complete reinvention of your office space, tailored to your unique needs and vision. The process of achieving this transformation is intricate and tailored, ensuring every detail aligns with your company’s identity and goals.

Navigating through the fit-out process with Fusion Office Design is a seamless experience. Our team of experts collaborates closely with you from the initial consultation to the final touches, ensuring every aspect of the project aligns with your vision and budget. We manage every detail, from space planning and design to selecting materials and installation, while keeping you informed and involved at every stage. Our commitment is to deliver a high-spec office fit-out that meets and surpasses your expectations within the agreed costs and timeframe.

Choosing Fusion Office Design for your office fit-out means opting for a service where quality, elegance, and functionality converge. Our high-spec office fit-outs are not just about changing the physical space; they’re about elevating your work environment to new heights of innovation and excellence. With clear communication about costs and a comprehensive understanding of the fit-out process, we ensure your office transformation is smooth, efficient, and rewarding.

Contact us today for a free office design meeting in London.