How Much Does an Office Fit Out Cost in London in 2025?

Published on 11 June 2025 at 09:12

If you’re planning an office fit out in London, one of the first questions you’ll have is: How much will it cost? While every project is unique, understanding the key factors that drive costs, and how to maximise value, can help you budget confidently and create a workspace that truly works for your people.

Key Factors That Impact Office Fit Out Costs

1. Office Size & Headcount
Fit out costs are typically calculated per square foot. As a rule of thumb, allow 100 sq. ft. per employee. For a team of 30, you’ll need around 3,000 sq. ft.

2. Condition of the Existing Space
A modern, well-maintained building may need less work, while older spaces might require upgrades to HVAC, electrics, or compliance. Always start with a thorough site survey to avoid surprises.

3. Scope & Specification

These figures are for Cat-B fit outs, covering all elements from partitioning and finishes to kitchens, meeting rooms, and furniture.

  • Basic Fit Out (£45–£60/sq ft):
    Fresh, functional, and move-in ready. Includes standard flooring, lighting, and basic furniture.
  • Mid-Range Fit Out (£70–£100/sq ft):
    Upgraded finishes, branded elements, partitioned meeting rooms, and improved acoustics.
  • High-Spec Fit Out (£100–£150+/sq ft):
    Premium materials, bespoke joinery, advanced tech, wellness rooms, biophilic features, and custom artwork.

4. What’s Included (and What’s Not)
Core fit out costs typically cover:

  • Partitioning and walls
  • Flooring and ceilings
  • Lighting and power
  • HVAC modifications
  • Decoration and finishes

Additional costs (often not included in per sq. ft. rates):

  • Specialist furniture and ergonomic solutions
  • AV/IT infrastructure
  • Relocation and storage
  • Specialist wellness or biophilic features
  • Project management and compliance

5. Timing & Project Complexity
Fast-tracked projects may cost more due to overtime or expedited materials. Phased projects (to minimise disruption) can also increase costs due to extended timelines.

6. Wellness, Sustainability & Future-Proofing
Investing in biophilic design, neuro-inclusive spaces, and sustainable materials may add to upfront costs but delivers long-term ROI through improved wellbeing, productivity, and talent retention.

Our Unique Agile Scrum-Based Design Methodology

At Future of the Office, we believe that the best results come from collaboration, transparency, and adaptability. That’s why we use an agile scrum-based design methodology for every London office fit out. This means:

  • Iterative Sprints: We break your project into short, focused sprints, delivering tangible progress at every stage.
  • Continuous Feedback: Your team is involved throughout, ensuring the design evolves with your needs and culture.
  • Rapid Problem-Solving: Challenges are addressed early, reducing risk and keeping your project on track.
  • People-First Results: The final workspace is not just beautiful, but truly supports your people, wellbeing, and business goals.

How to Budget for Your Office Fit Out

  • Start with a clear brief: Define your goals, must-haves, and future growth plans.
  • Prioritise people and wellbeing: Consider features like natural light, quiet zones, and ergonomic furniture.
  • Plan for flexibility: Modular solutions and adaptable layouts help future-proof your investment.
  • Embrace Agile Design: Our agile scrum-based approach ensures your fit out is responsive, iterative, and perfectly aligned with your evolving needs.
  • Work with a trusted partner: An experienced team can help you avoid hidden costs and deliver on time.

Frequently Asked Questions

What’s included in an office fit out?
A typical fit out covers design, construction, finishes, lighting, HVAC modifications, and compliance. Furniture, AV, and specialist features may be additional.

How long does an office fit out take in London?
Most projects take 8–16 weeks, depending on size and complexity. Our agile approach helps keep timelines efficient and transparent.

Can I fit out my office sustainably?
Yes! We specialise in ESG-driven, sustainable fit outs using eco-friendly materials and energy-efficient systems.

How do you ensure the fit out aligns with our company culture and values?
Our agile scrum-based design methodology involves your team at every stage, ensuring the final result reflects your unique culture and values.

How do I get an accurate quote?
Book a free consultation for a tailored estimate based on your needs and space.

 

Ready to create a future-ready, people-first workspace in London?

Book a free workplace consultation with our team for a detailed, transparent fit out cost estimate and discover how our agile scrum-based design methodology can help you build a space where your people and business thrive.