Extensions and Conservatories – Costs, Rules & Design Options (UK Guide)
March 6, 2026
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Extensions and Conservatories can both add space, but they differ on comfort, costs and compliance. This UK guide explains planning permission vs permitted development, when Building Regulations apply, and design options that work year-round. Learn common pitfalls, how to connect a glazed room to an extension, and the smartest next steps.
