Derby's Trusted Builder for House Extensions

Eley Projects is a Derby-based building contractor specialising in house extensions. We help you stay in the home you love whilst building the space you need.

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An elderly couple stood in their garden looking at their new house extension in derby.

Don't wait to make your dream home a reality

Moving can be stressful and expensive. But staying in a home that no longer works for you isn’t the answer either.

Whether you're looking to create more space, modernise your home, or add value to your property, Eley Projects is here to help.

Unlock the space in your home

Increase your property's value

Create a space tailored to you

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Derby's Trusted Builder for House Extensions Since 1982

For over four decades, Eley Projects has helped Derby homeowners craft their dream space. Originally founded as A J W Eley Building Contractors, we've since focused our expertise exclusively on house extensions, because that's what we do best. Our dedicated team has completed hundreds of successful extensions, giving families the extra space they need while staying in the homes they love.

4.9

Average Google Rating

40+

Years in the business

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On site with Eley Projects, Derby's house extension specialist builder.

See some of the house extensions we've built in Derby

See what other local Derby homeowners are saying about Eley Projects

"Really pleased with the work that Ben and Ian did on our home. They were hardworking, kept us up-to-date and coordinated the other trades."

Andrew Beattie

Google Review

"Following having several quotes for the work Ben was the only builder who suggested that we could reuse the bricks to ensure the opening matched the existing brickwork. His price was fair and reasonable and was provided in writing. Ben and Ian have done a fantastic job and I am really pleased with their work. We have already discussed the next project. I would not hesitate in recommending them to friends and family."

Nadine Taylor

Google Review

"Eley Projects did a fantastic job of our kitchen extension. They were organised and tidy throughout the build, and completed it to a very high standard in good time. The guys were friendly, approachable and trustworthy. We would absolutely recommend Eley Projects, and would use them again without a second thought."

Tom Beamish

Google Review

"From start to finish of having our garage conversion completed we were very impressed with Ben and his team. We had been let down by one builder but found Ben honest and kept us up to date throughout. The work was completed quickly and well with very little disruption."

Alison Herbert

Google Review

"Ben and his team have completed a garage conversion for us, we are really pleased with it. The work has been completed to a really high standard, Ben has a great attention to detail and it shows in the finished work. In a time where many builders will lowball prices, Ben sets a realistic expectation and you can trust that it is genuine value for money. Ben organised the other trades really well too."

Andrew Lucas

Google Review

"Their attention to detail is awesome and also when they find a problem they crack on and solve it."

Dennis Porter

Google Review

Eley Projects Derby house extension specialist guide

FREE DOWNLOAD

5 Costly House Extension Mistakes and How to Avoid Them

Planning your extension project? Don't start until you've read this free guide. Packed with over four decades of house extension expertise, you'll discover:

Tips to ensure your project runs smoothly from start to finish

Budget-blowing mistakes that could cost you thousands

Essential planning steps most homeowners overlook

Download Now

HOW IT WORKS

Crafting your dream space in three simple steps.

Instant Estimate

Estimate

Get a rough idea of your project’s cost using our simple Project Estimate Calculator. It’s quick, easy, and the perfect starting point for planning your extension.

Quote

Take 60 seconds to fill out our online form and provide a few more details. We'll look over your plans and give you an accurate quote for your project. No surprises, no hidden costs, just complete clarity and peace of mind.

Construction

Once you’re ready, our skilled team will get to work, delivering your dream extension on time and with minimal disruption to your daily life.

Single-Storey Extensions Made Easy: The Ultimate Step-by-Step Guide for Homeowners 2025

Planning your extension? Our free guide makes it simple, with clear steps to bring your vision to life. Download your free guide now.

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Close up photo of some house extension plans with pencils

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