Published on:

12 October 2023

Updated on:

08 April 2024

Read time:

3 minutes

Tom Parsons

Sales Director

If you're looking to design and build out a new office space or refurbish your current office, one of the first and biggest questions you may ask is “How much does an office fit out cost?”.

Office fit out costs can vary widely, with a range of factors such as the size of the space, the level of customisation required, the time involved and the location of the office space.

The process of designing and constructing an office space, tailored to meet the specific needs of an organisation, can generate significant costs. From creating design plans and selecting the necessary materials to project managing and executing the construction work, there’s a lot to be considered when it comes to office fit-out.

How much do an office fit out cost charts

According to recent research conducted by commercial agents, Knight Frank, the average cost of an office fit out in London is around £175 per square foot, with this falling to around £70 per square foot on the lower end in other areas of the UK.

Office fit out costs per square foot

These figures can vary widely depending on the specific requirements of each project and its address. For example, a basic office fit out may cost as little as £30 per square foot, while a high-end fit-out, with bespoke features and high-quality finishes, can cost upwards of £250 per square foot in the London area.

Levels of office fit out

The first factor impacting cost is the level of fit out you require. There are typically four main levels:

  • Shell & Core is the base building, including the core structure, façade, lobbies and restrooms. The interior will be left as a blank canvas.
  • Category A adds the core services to make the space habitable.
  • Category A Plus sits between Cat A and B - a "plug-and-play" setup
  • Category B is creating a fully personalised, operational workplace

The level of office fit out required will depend on the building you are moving into and the needs of your business.

Location variations

One of the main factors that affects the cost of an office fit out is location.

London has the highest costs, on average, attached to a commercial fit out, due to higher labour and material costs and an overall far higher demand for premium office spaces. The capital is then followed by some of the other major UK cities, such as Manchester, Birmingham and Leeds.

There’s also an identifiable North South divide, with the average cost of an office fit out around London costing from around £100 per square foot, compared to around £70 per square foot in the North of England.

London is representative of the fluidity of the market as the changes in the use of space, post-Pandemic, are taken into account. An article by The Economist detailed how richer cities across the globe, (citing New York, Hong Kong and Paris besides London) are investing more rather than less in office space, despite costs and the economy, in a bid to attract tenants and workers back in, with high-end luxury spaces and green buildings topping the trends.

How much do an office fit out cost map

Design complexity and custom fits

Another factor that affects the office fit out cost is the level of customisation required. Basic office fit outs typically involve simple design features and regular furnishings, such as modular workstations and standard lighting fixtures.

A high-end commercial fit out, designed to stand out, will undoubtedly require bespoke office design features and high-quality materials, such as custom-built office furniture and premium flooring options.

These customised features can have a huge impact on the cost of an office fit-out, taking budgets to a whole new level.

Size matters

The size of the office space is another key factor in determining the cost of any fit out.

Larger office spaces equate to more materials and extra labour, not to mention the time they take to complete, which will, most definitely, increase the overall cost of the project.

However, it’s also worth considering that larger office spaces can benefit from economies of scale as these bigger projects can usually negotiate better pricing on materials and labour, which means they work out cheaper per square foot.

Details and technology

Furniture and technology are optional elements but most fit outs will allocate 15-20% of the budget for items like desks, chairs, storage for each workspace, breakout furniture for lounges and cafes, and meeting room and boardroom tech such as AV and video conferencing.

We live in an age of connectivity and one of the most crucial aspects to any office environment is its technology.

The level of integrated technology required, the need for specialised equipment and the complexity of the design can have a major aspect on costs. Office space that requires sophisticated, high level technology integration will have to allow for higher costs.

Data centres and call centres are among those workplaces that may require specialised equipment and custom design features, which will increase the overall cost of the fit out. As more people adopt hybrid working styles, the need to stay connected is key.

Sustainable office fit out costs

Eco-friendly office fit outs use elements like recycled/upcycled furniture, low VOC paints and finishes, LED lighting and smart building tech, and renewable energy sources.

While sustainable materials and systems can cost 10-20% more upfront, they offer long-term utility savings and environmental benefits.

Compliance costs

All fit outs must comply with regulations like building standards for structure, fire safety, accessibility, health and safety e.g. ventilation, lighting, electrics, and planning permission and zoning laws.

Meeting compliance can add 5-10% to costs. Permits, inspections and certification also apply especially for larger, complex projects.

Ongoing maintenance

In addition to the upfront costs of an office refurbishment, businesses have to consider the ongoing maintenance and operating costs.

High-end finishes and customised features may require more maintenance and upkeep than standard materials and features. Similarly, technology integration is likely to require ongoing IT support and maintenance, which should be factored into overall costs.

Many companies are shifting towards greener buildings and eco-friendly facilities provision as part of a bid to consider long-term running costs, as well as corporate ethics and sustainability – environmentally-friendly solutions can make good financial sense and are always worth giving due consideration.

Key office fit out cost takeaways

While it varies case-by-case, typical office fit out costs range from £70 - £250 per sq ft depending on factors like:

  • Location - London and major cities are 20-30% higher
  • Level of fit out - Shell & core vs full fit-out
  • Design complexity - Standard open-plan vs high-end bespoke
  • Size - Even when larger spaces benefit from economies of scale
  • Furniture and tech choices - Economic vs premium
  • Sustainability requirement - Using eco-friendly elements
  • Compliance needs - Building regs, safety, accessibility

Understanding these cost components helps set realistic budgets and expectations for your office fit out project.

Meet the Author

A senior director and project director, Tom is a strong, focused leader who takes pride in motivating his team to deliver the best results. Having worked in the industry for almost 15 years, he has a keen insight as to the business needs of the client and what it will take for a project to successfully meet those needs.