Bespoke Design & Planning
Over 12 Years of Experience
Free Consultation & Itemised Quotes
Full Cost Transparency & Project Management
Insurance Backed Warranty
Bespoke Design & Planning
Over 12 Years of Experience
Free Consultation & Itemised Quotes
Full Cost Transparency & Project Management
Insurance Backed Warranty
At Good Design & Build, we specialise in creating double-storey side extension that cater to your unique needs. Ideal for families looking for additional bedrooms or a larger living area, our designs seamlessly blend with your property while elevating its character. We manage the entire process, from navigating planning permissions to coordinating the build for a seamless and stress-free experience.
What Our Clients Say
Thank you to Amol and his entire team
“Thank you to Amol and his entire team for delivering us a fantastic extension to our newly purchased home. The guys were friendly and very professional during all stages”
Lisa
Twickenham TW2
Thank you Good Design & Build…
“Originally, we’d planned on this being a property to rent out to others. Since the loft conversion, we’ve fallen back in love with the place – and have now decided to move back here.”
George Banks
Richmond TW10
I would like to thank GDB…
“I would like to thank GDB for all of their hard work, ideas and inspiration and for being so approachable and easy to deal with during the our rear extension. I would happily recommend them to anyone thinking of starting a building project”
Debra
Mortlake SW14
My wife and I would like to say a huge thank you
“My wife and I would like to say a huge thank you to all the team at Good Design & Build. From the planning stage all the way through to completion they were meticulous with their design and helping us achieve our vision of our dream family home. We were supported all the way through, even when we wanted to make significant structural changes during the build. We are over the moon with the results achieved and quality of the building work and finishing is excellent. THANK YOU GOOD DESIGN & BUILD!!”
Xerxes Dalal
Potters Bar EN6
Good Design provided the architectural services
“Good Design provided the architectural services as well as building work. It was great to have both bundled into one. They were very flexible and great to work with - nothing was too much trouble. I would highly recommend them.”
Louise Murray
Twickenham TW1
We thoroughly enjoyed working with Amol
“We thoroughly enjoyed working with Amol and the Good Design & Build team on our recent house extension. We've been so happy with how the team helped design, plan and deliver the extension. Always very patient and informative of how the process will run, the team did a fantastic job and we're delighted with the results. The biggest compliment I can give them is that I'd happily work with Amol and the team again :).”
Benjamin Hammond
Twickenham TW11
Planning Permission & Permitted Development
Featured Projects
Harlesden
Sellons Ave NW10 4HJ
The project included creating a master bedroom in the loft with an adjoining terrace.
Learn more
Fulham
Orbain Road SW6 7JZ
This project was completed in 2023 and the approximate budget was £101,000.
Learn more
Lambeth
Hetherington Road SW4
We completed this stunning project for our client Angus in Lambeth.
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Teddington
Station Road SW4 7PA
We completed this exciting project for our clients on Station Road, a quaint residential area in the heart of Teddington.
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Leyton
Windsor Road E10
We completed this kitchen extension on Windsor Road, a charming residential street nestled in the heart of Leyton.
Learn more
Harlesden
Sellons Ave NW10 4HJ
The project included creating a master bedroom in the loft with an adjoining terrace.
Learn more
Fulham
Orbain Road SW6 7JZ
This project was completed in 2023 and the approximate budget was £101,000.
Learn more
Lambeth
Hetherington Road SW4
We completed this stunning project for our client Angus in Lambeth.
Learn more
Teddington
Station Road SW4 7PA
We completed this exciting project for our clients on Station Road, a quaint residential area in the heart of Teddington.
Learn more
Leyton
Windsor Road E10
We completed this kitchen extension on Windsor Road, a charming residential street nestled in the heart of Leyton.
Learn more
Frequently Asked Questions
We are a South West London-based design and build studio. We specialise in remodelling semis, loft conversions and kitchen extensions,Victorian and 1930s residential properties. We carry out projects from planning to completion. We are a friendly and professional team of architects, technicians, project managers and builders to help you at every stage.
Yes, double-storey extensions usually require planning permission, as they significantly alter the property’s size and layout.
A double-storey extension can take 10-12 weeks to complete, depending on the design and construction process.
Depending on the design, you can add multiple rooms, such as bedrooms, bathrooms, ensuites or even an additional living space.
Yes, we ensure that the extension’s design complements your home’s existing architecture and style.
Yes, double-storey extensions require detailed architectural drawings and structural calculations, which we provide through advanced CAD design drawings for each client we work with.
Yes, double-storey side extensions are perfect for adding en-suite bathrooms and additional bedrooms ideal for your growing family or requirements such as guest rooms.
Yes, incorporating large windows, bi-fold, or sliding doors is a popular option for bringing in natural light and connecting your extension with the other areas of your home.
The cost can be determined based on factors such as the size of the extension, complexity of the design, style and materials of the staircase, and any structural work required etc.