FIT-OUT COST CALCULATORS
Use the detailed London calculator, or the global calculator for fit-out costs and permitting procedures across 94 countries and 186 cities. These are indicative planning tools, not quotations, and project-specific advice should reflect the building, brief, design and procurement route. Office fit-out costs can be compared per square foot or per square metre, with budgets varying by location, specification and procurement route. Use our office fit-out cost calculator to review indicative CAT B fit-out costs for London, the UK, EMEA and global markets.
Two cost calculators are available—choose the one you need:
LONDON OFFICE FIT-OUT CALCULATOR
Use this London office fit-out cost calculator to compare five practical Cat A to Cat B project profiles per square foot or square metre—from a light-touch workplace to a highly tailored, high-specification fit-out.
These are planning profiles rather than fixed market boundaries. Cost depends on cellularisation, specification, existing building condition, reuse, programme, access, joinery, specialist finishes and services alterations.
Maximum reuse of Cat A services and finishes, with limited partitions and joinery.
Typical meeting rooms and cellularisation, standard finishes and controlled joinery.
More services alterations, specialist finishes and bespoke joinery.
Greater cellularisation, upgraded finishes, feature joinery and enhanced services.
Highly tailored design, extensive joinery, specialist finishes and major services changes.
Construction, furniture and AV/IT are separated so the headline is easier to understand.
53% · £36.92/ft² Visible fit-out: partitions, doors, joinery, tea points, ceilings, acoustics, lighting, decoration and flooring.
31% · £21.55/ft² Behind the finish: fire detection, power, cabling, HVAC and plumbing.
16% · £11.47/ft² Project costs: design, preliminaries and enabling works.
Basis: good Cat A to Cat B. Indicative September 2026 planning guide, net of VAT. Headline rates exclude contingency, which is shown separately. Fire costs cover detection and alarm alterations only; sprinkler alterations are excluded. Also excludes property costs, finance, decant/removals, landlord works, washrooms, blinds, major structural or incoming-service upgrades and unverified abnormal risk. This is not a quotation.
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