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 extensions that provide extra bedrooms, bathrooms and living spaces that integrate effortlessly with your home’s existing style. With over 12 years of expertise, our team ensures each project adds practical value and architectural appeal to your property. From the initial planning phase to the final touches, our team will guide you through a seamless process.

Don't move. Extend in style

We can save you the hassle that comes with moving not to mention the heavy stamp duty! Adding an extra loft bedroom or enlarging the living kitchen dining space on ground floor is an economical way of transforming your home to suit growing needs. The projects can range from £40-100K depending on your requirements and can be completed within 8-16 weeks.

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What Our Clients Say

Planning Permission & Permitted Development

The Good Design and Build Company oversees the entire design and construction process, including securing planning permissions for wraparound extensions. We engage with local planning authorities to guarantee that your project adheres to all necessary building regulations, such as party wall agreements and prior approvals. To learn more, please visit our planning services page or consult our detailed guide.

Featured Projects

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 because of the size and height involved.

Yes, a double-storey extension can increase your home’s value to your home.

Yes, you can add multiple rooms, such as bedrooms, bathrooms, or additional living areas, on both levels.

Yes, double-storey extensions require detailed architectural drawings and structural calculations, which we provide via advanced CAD design drawings.

Yes, we ensure the extension is designed to complement the architecture of your existing home.

Yes, double-storey extensions are ideal for adding en-suite bathrooms to new bedrooms.

Yes, incorporating large windows, bi-fold, or sliding doors is a popular option for bringing in natural light and connecting your extension the rest of your living space.

When considering a double-story extension, the possibilities are vast and can be tailored to your specific needs and lifestyle such as adding in a master bedroom with an ensuite, a home office, a home library, a playroom etc.

GET YOUR FREE EXTENSION
QUOTE


    Loft ExtensionKitchen ExtensionBothFull Refurbishment


    ASAP3 - 6 months1 - 2 years


    £50 - £75K£75 - £150K£150 - £250K£250K plus






    GET YOUR FREE EXTENSION QUOTE


      Loft ExtensionKitchen ExtensionBothFull Refurbishment


      ASAP3 - 6 months1 - 2 years


      £50 - £75K£75 - £150K£150 - £250K£250K plus