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Mezzanine floor cost guide

In a room with high ceilings, adding a mezzanine can add both functional space and a stylish addition to a home. It can also add much needed additional storage or a working space in a commercial property. In this mezzanine floor cost guide, we look at the average prices of installing a mezzanine in the UK.

Whether you’re renovating your home or planning an office in a warehouse, mezzanines are a great way to utilise an otherwise empty space. With open-plan living being extremely popular with British homeowners, we’re seeing more domestic mezzanines in properties all over the country – especially in barn conversions and houses with vaulted ceilings. But how much does it cost to build a mezzanine floor?

ItemAverage cost
Average domestic mezzanine floor (23m2)£9,500
Industrial / commercial mezzanine floor (supply and installation)

What is the cost of building a mezzanine floor?

The average cost of building a mezzanine floor in a home is around £9,500, based on a mezzanine area of roughly 23m2.

If you’re looking at adding a mezzanine into a commercial or industrial property, the average mezzanine floor cost can range from about £4,850 for 25m2 to around £15,100 for 200m2. Though the price can vary considerably, depending on a number of factors.

Mezzanine floor cost per square metre

For industrial properties, the average cost of building a mezzanine floor is around £75-£150 per square metre. You can use the price per m2 for a mezzanine floor cost calculator. Work out the total area of your space and multiply it by the average cost per m2 for a ballpark figure.

That said, this cost can vary considerably depending on a number of factors, including:

  • Size of the mezzanine area
  • Type and quality of materials used
  • The complexity of the design
  • Need for bespoke design and installation
  • Location of the property
  • Access to the site

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How much space do you need for a mezzanine?

Good question. Due to the nature of a mezzanine floor, you need to make sure you have enough height in the room. To build a mezzanine in an existing room you’ll want to make sure you have a minimum ceiling height of over 4m.

We would always recommend having a mezzanine specialist carry out an assessment of the room, to make sure the dimensions of the space are sufficient for adding a mezzanine.

how much does a mezzanine floor costPros and cons of adding a mezzanine floor

If you’re wondering whether a mezzanine is a good idea, here are some of the benefits and drawbacks to building a mezzanine floor:


  • Creates a unique space that can provide an impactful feature in a home.
  • Adds functional space.
  • Makes use of unused height in rooms with high ceilings.
  • Can increase the value of the property.


  • Requires a minimum height.
  • Needs careful planning to make the most of the space.
  • Mezzanines are open plan so don’t offer much privacy.
  • Will need a structural engineer to advise on the project.

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Useful mezzanine floor checklist

  • Speak to your local mezzanine experts and request a consultation to plan your mezzanine project.
  • Ensure the room you’re planning on adding the mezzanine to has a ceiling height of at least four metres.
  • Contact your local council to confirm if planning permission is needed.
  • Shop around for fair and competitive costs for building a mezzanine floor.
  • Always hire a tradesperson with experience, ask to see examples of their recent work and check out ratings and reviews from previous customers.

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