The Market Design & Build

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The Market Design & Build is a leading loft conversion and extension company specialising in complete project management and providing a complete turnkey service to our clients. Our skilled team of crafts and workmen have extensive knowledge of the building trade and each project is led by an experienced foreman. 

If you are looking to convert, extend of refurbish your property, whether commercial or residential, our comprehensive service will guide you, from initial plans all the way through to impeccable completion. We believe that craftsmanship should not be compromised because of deadlines or budget requirements and aim to magnify everything you love about your home or business property by unlocking space and combining functionality with amenity and comfort.

As London's most affordable conversion and refurbishment company we deliver on quality as well as price.

  • Extensions
  • Loft conversions
  • Kitchen Design & Build
  • Bathroom Design & Build
  • decorating
  • renovation
  • Refurbishment
Service areas
Greater London
320 High Street
UB3 5DU London
United Kingdom


The Market Design and Build has just finished a big project for us and we couldn’t be happier. The property is an old converted barn so the challenge was huge. Obviously there were some set backs but the communication in between us (property owners) and The Market was excellent so problems were solved quickly. These guys are not here to screw you over. Before signing the contract they guaranteed us that they wouldn’t leave the project until we were 100% happy.. And they didn’t! We are sure to use The Market again if we need more work done on a property in the future.
about 1 year ago
Project date: October 2016