Understand the real cost of office fit out and refurbishment projects in London, including CAT A/CAT B fit outs, workplace upgrades and commercial interior costs.
Fusion Office Design provides clear cost guidance, tailored project estimates and workplace expertise for businesses planning office transformation projects across London.
Understanding the real cost of an office fit out or workplace refurbishment project is essential when planning a successful office transformation.
At Fusion Office Design, we help businesses across London balance workplace performance, project scope and commercial budget expectations to create office environments designed around productivity, collaboration and long-term operational growth.
Whether upgrading an existing workspace or delivering a complete CAT A/CAT B fit out, our team provides clear cost guidance, practical project insight and tailored workplace solutions designed around your business requirements.
Every office fit out and refurbishment project is different. Costs depend on workplace size, specification level, project complexity and the type of office environment being created.
Whether planning a basic office fit out, workplace upgrade or high-spec commercial interior project, Fusion Office Design helps businesses across London balance workplace performance, design quality and commercial budget requirements.
Basic Office Fit Out: From £40 per sq ft for functional workplace upgrades and cost-conscious office improvements.
Mid-Range Fit Out: £65–£120+ per sq ft for modern office environments balancing design, comfort and functionality.
High Spec Office Fit Out: £150+ per sq ft for premium commercial interiors, bespoke joinery and luxury workplace finishes.
Project costs can also vary depending on structural works, furniture requirements, power and data infrastructure, AV systems and workplace customisation.
For tailored pricing guidance, explore our Office Fit Out London and Office Refurbishment London services.
Every office fit out project is shaped by workplace requirements, business objectives and the overall scope of the commercial interior works being delivered.
Final project costs can vary depending on office size, specification level, workplace functionality and the complexity of the fit out or refurbishment process.
Explore our Office Fit Out London service to see how workplace strategy, fit out delivery and project planning come together across commercial office projects in London.
The cost of an office fit out in London can vary significantly depending on workplace specification, project scope and the level of finish required.
Industry benchmarks from Savills suggest CAT B office fit out costs typically range from:
Traditional fit out pricing often includes separate professional fees for architects, quantity surveyors, external project management and cost control services. Fusion Office Design combines workplace design, project management and fit out delivery into one integrated service, helping businesses maintain greater control over workplace budgets, timelines and project coordination.
A successful office fit out project requires clear planning, workplace strategy and efficient project delivery from start to finish.
At Fusion Office Design, our process is designed to help businesses manage workplace transformation projects with clear communication, structured cost planning and minimal disruption throughout the build process.
Learn more about workplace upgrades and project delivery through our Office Refurbishment London service.
A high spec office fit out is designed to create a premium workplace environment that reflects your brand, supports employee experience and delivers long-term business value.
High-spec workplace projects typically include bespoke office design, premium finishes, high-quality furniture, advanced AV systems and custom commercial interior features tailored to operational requirements and company culture.
Fusion Office Design manages high-end office fit out projects across London, combining workplace strategy, project management and commercial interior expertise to deliver professional office environments designed around performance, functionality and visual impact.
Explore our Office Fit Out London portfolio to see examples of high-spec workplace transformation projects.
No two office fit out projects are exactly the same. Final project costs can vary depending on workplace size, specification level, operational requirements and the overall scope of the commercial interior works.
Whether planning a basic office refurbishment or a high-spec workplace transformation, several factors can influence the total investment required.
Fusion Office Design helps businesses across London plan office refurbishment and fit out projects with clear cost guidance, structured project planning and commercially focused workplace solutions.
Fusion Office Design delivers office fit out and workplace refurbishment projects for businesses across London, combining workplace strategy, commercial interior expertise and practical project delivery.
Our team works closely with clients throughout the entire fit out process, from workplace planning and office design through to project management, furniture installation and final delivery. Every workspace is designed around operational requirements, company culture and long-term business goals.
Whether delivering a high-spec office fit out, upgrading an existing workspace or managing a complete workplace transformation project, Fusion Office Design focuses on creating professional office environments that balance functionality, employee experience and commercial performance.
With clear communication, structured project planning and extensive workplace experience, we help businesses deliver office environments that are efficient, future-focused and aligned with their budget and operational requirements.
Office fit out costs in London can vary depending on workplace size, specification level and project complexity. Basic office fit outs can start from around £40 per sq ft, while high-spec workplace projects with bespoke finishes, advanced AV systems and premium office furniture can exceed £150 per sq ft. Factors such as CAT A/CAT B requirements, office layout, furniture selection and workplace technology can all influence the final project cost.
Office refurbishment costs are influenced by several factors, including office size, workplace design complexity, structural works, furniture requirements and the level of workplace customisation required. Additional elements such as HVAC systems, lighting, meeting rooms, AV systems and phased delivery can also impact overall project costs. Every office refurbishment project is different, which is why detailed planning and cost guidance are essential.
An office fit out project can include workplace design, space planning, partitioning, flooring, lighting, HVAC systems, power and data infrastructure, office furniture installation, breakout spaces, meeting rooms and project management. The exact scope depends on the business requirements, workplace goals and specification level of the project.
A CAT A fit out prepares a commercial office space for occupation by installing core services such as ceilings, lighting, HVAC systems and raised flooring. A CAT B fit out focuses on transforming the workplace into a fully operational office environment tailored to the business, including office furniture, meeting rooms, branding, collaboration spaces and workplace design features.
The length of an office fit out project depends on the size of the workspace, project complexity and specification level. Smaller office refurbishments may take a few weeks, while larger CAT B fit out projects with bespoke features and structural works can take several months. Detailed project planning and coordination help minimise disruption and keep delivery timelines on track.
Yes. Office furniture is often included as part of an overall workplace fit out or refurbishment budget. This can include office desks, ergonomic seating, meeting tables, storage solutions and bespoke workplace furniture. Furniture selection plays an important role in both workplace functionality and overall project costs.
When budgeting for an office refurbishment, businesses should consider workplace size, fit out specification, furniture requirements, technology infrastructure, project management costs and any structural or building works required. A detailed cost plan helps businesses understand expected investment levels and avoid unexpected costs during the refurbishment process.
Some office fit out providers charge separately for project management, quantity surveying and workplace consultancy services. Fusion Office Design provides integrated workplace design, project management and fit out delivery services, helping businesses maintain clearer budget control, streamlined communication and efficient project coordination throughout the process.
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