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Home Extensions

Our team of experts will take care of the entire project for you, from planning, building work, to finish! All extension projects are covered by an industry leading 12 year warranty.

Home Extensions

Our team of experts will take care of the entire project for you, from planning, building work, to finish! All extension projects are covered by an industry leading 12 year warranty.

Opun's service branding

Spacious Extension

  • Location: London
  • Project Type: Extension
  • Duration: 4 - 8 Weeks
  • Cost: £75 - 100K
  • Floor Area: 30 - 40 M²

A spacious and bright single story living room and bedroom extension project. This sensational home extension granted our customers the opportunity to make their dreams come true by installing a bright and spacious new kitchen in their loft. Sleek, sexy and sophisticated this gorgeous contemporary look really takes the breath away.

Spacious Extension

  • Location: London
  • Project Type: Extension
  • Duration: 4 - 8 Weeks
  • Cost: £75 - 100K
  • Floor Area: 30 - 40 M²

A spacious and bright single story living room and bedroom extension project. This sensational home extension granted our customers the opportunity to make their dreams come true by installing a bright and spacious new kitchen in their loft. Sleek, sexy and sophisticated this gorgeous contemporary look really takes the breath away.

Have some questions for your project? Check out our FAQs.

What Our Customers Say

We aim to give our customers total peace of mind while turning their dream project into a lovely new space in their home, as swiftly as possible.


See what previous Opun customers have been saying about us.

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Our Coverage Area

Opun currently serves London and most of the Home Counties. We are expanding quickly and aim to be fully nationwide within the next few years. Use our postcode checker to see if we currently cover your area and please get in touch to discuss your exciting new project with us.

Let’s check if Opun covers your local area.

Opun is part of the John Lewis Partnership

An Opun extension means…

Extending your home is an exciting project. More space for you and your family to enjoy in your home, bringing more from the outside inside! Every extension project is unique so we approach each one by understanding your key requirements and the home’s limitations, to maximise the space we can unlock. together. The Opun process is simple and straightforward. After getting in touch with us, we’ll send out one of our surveyors to meet you at your home. They will do an initial survey and a consultation with you to learn more about your project. A clear price guide is produced a couple of days later. Then our architectural team is ready to produce a full set of structural drawings for your extension. If needed, we’ll will handle the application for planning permission on your behalf. Opun’s team of fully vetted trade partners will carry out the work on time and on budget. Your dedicated Opun assistant will coordinate the entire project for you, and an Opun regional manager will oversee each phase of the work. At each stage, the work is signed off after a survey with yourself. When your extension is complete, not only will you benefit from all that extra space and a boost in the value of your property, you’ll also receive an industry-leading warranty on all our work. CLICK HERE to get your FREE 3 pages Extension guides

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© 2019 Carlisle Place Ventures Ltd trading as Opun, proudly part of the John Lewis Partnership    Registration Number: 02829583    Address: 171 Victoria Street, London, SW1E 5NN    See in Google Maps