From permitted development to choosing a layout, the essentials to think about before you build.
Many single-storey extensions can be built under permitted development rights, meaning you may not need full planning permission — but the rules depend on your property and area, so always check first.
Think about how you'll actually use the space and how light will enter it. Bi-fold doors and roof lights can transform how a room feels.
We guide you through every stage, from first idea to finished room.
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