WHAT WILL YOUR FIT-OUT ACTUALLY COST?

Office fit-out cost per sq ft in the UK (2026)

UK office fit-out costs fall into three bands. Basic specification typically runs at £30 to £60 per sq ft, mid-range at £60 to £100 per sq ft, and high-end at £100 to £150+ per sq ft. Where your project lands depends on specification, complexity and programme.

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How to estimate your fit-out budget

Multiply your total area in sq ft by the cost per sq ft for your specification. As a guide, a 5,000 sq ft mid-range office typically lands between £300,000 and £500,000, while a 10,000 sq ft high-end scheme can reach £1,200,000 or more. The calculator above gives you a starting range for your own project.

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What drives fit-out cost

The biggest cost drivers are M&E (mechanical and electrical) work, space planning and complexity, FF&E, bespoke joinery and programme. Test your assumptions early, before the design is fixed.

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Fit-out costs from a design-led, contractor-informed studio

Zero Gravity Design is a commercial interior design studio in Manchester and London, with 150+ projects and 500,000 sq ft delivered. We are design-led and contractor-informed, so the schemes we design are built to be delivered. Read the full guides: Office Fit-Out Cost Calculator UK 2026 and Office Fit-Out Costs in Manchester (2026 Guide).