Double Storey Extensions
Add the space you’ve always wanted with a luxurious main bedroom, complete with en-suite and a dressing room of your dreams.
Transform your home with a double-storey extension, adding space across two floors. Create additional bedrooms for an expanding family, a luxurious en-suite or a study, together with a spacious open-plan kitchen/dining/living area downstairs.
A double-storey extension maximises your property’s potential whilst adding value, making it a smart long-term investment for your home and lifestyle.
Our Project Portfolio
Why not take a look at some of our latest double-storey extension projects for inspiration and ideas?
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See your ideas come to life with a free home consultation from our Architectural Designers.
Frequently asked questions about double storey extensions
Do I need planning permission for a double-storey extension?
You may require planning permission for a double-storey extension, especially if it extends more than 3 metres from the rear, is higher than the existing house, or sits closer than 7 metres to the rear boundary. Permitted development may apply if the extension meets specific criteria, but listed buildings and conservation areas usually require permission. Our expert team will be able to advise you further once they have visited the property.
How much does a double-storey extension cost?
The cost of a double-storey extension varies depending on size, design complexity, materials, and finishes. Our Designer can provide guidance and share examples of similar projects to give you an understanding of costs during and after the free consultation.
What are the main structural considerations for a double-storey extension?
Key considerations include ensuring the foundations can support the extra load, adding steel beams or load-bearing walls, integrating the new roof with the existing structure, and updating drainage and utilities to handle the increased demand.
How much value can a double-storey extension add to my property?
A well-designed double-storey extension can increase your property’s value by 10%–20%, especially if it adds extra bedrooms, an ensuite, or improves the flow and functionality of the living space.
What are the key benefits of choosing a double-storey extension over a single-storey one?
A double-storey extension maximises space without taking up much garden space, it costs less per square metre than a single-storey extension, increases property value, and improves functionality with additional/larger bedrooms, bathrooms, study or living areas.