Extensions team

The Market Design & Build are specialists in all types of house extensions, ranging from single or double storey extensions, kitchen extensions to side extensions and conversions. Our highly skilled team of interior design experts can help you create that much needed extra space or refurbishment that a home needs, without the hassle or expense of moving home.

We have an experienced building team that have completed many similar projects and with their knowledge they can assist you from day one; from drawing up the initial build plans right through to helping you select the colours and styles to fill your new space.

We have overseen many extensions in London on a variety of different properties and we are confident that The Market Design & Build can provide you with the perfect extension that stays within budget and is completed on time.

An extension is a great idea if you are settled in a property and have external space like a garden that you can build out into. Extensions are perfect for anyone looking for that extra space for a growing family, or if you need that state-of-the-art kitchen extension to bring your home into the 21st century. The Market Design & Build already have a professional team who handle all our kitchen installations, from installing any plumbing to changing the placement of the extractor fans.

Alternatively, if you already have an extension that has seen better days and would like to upgrade it, for example to add fibreglass insulation or install new sky lights to bring in more natural light, our team are always ready and able to assist.

Quality Home Extensions in London

With our revolutionary 6 Step Process, The Market Design & Build are able to completely design, plan and build your extension ourselves – this puts us ahead of any competitors as we benefit from having all the right people already in the right place, removing the searches for tradesmen or scheduling worries. We take responsibility for the entire project and will work with you to achieve your vision.

Before any work has even begun, our design team can arrange for a free, no obligation site visit to assess your home and provide you with all the information you need to achieve your vision.

For examples of our work and completed projects, please visit our Case Studies page.

With no deposit, our 10-year guarantee and over 550 positive reviews on Checkatrade, please contact us today to arrange a consultation.


10 Year Guarantee
10 Year Guarantee
10 Year Guarantee
Insurance Backed Guarantee

Below is a list of services that we provide you with:

  • Client brief
  • Survey
  • Survey plan
  • Proposed drawings
  • Cost management
  • Demolition plans
  • Electrical plans
  • Outlet and fitting plans
  • Finishes plan
  • Builders work
  • Submitting planning application
  • Onsite assistance
  • Project managing

The Market Design & Build