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Planning intelligence
What can I build? Get a free renovation estimate for your London home
Type your address. We read your street’s real planning decisions — what your neighbours got approved, and what got refused — and show you, with the actual approved designs nearby.
Free renovation estimate for London extensions and loft conversions
Type any London address above and we’ll show what your street has actually had approved — rear extensions, side-return extensions, wraparound extensions, loft conversions (rear dormer or hip-to-gable), garage and basement conversions — with real planning references, plus a priced concept and a free survey.
Typical London costs we cover: house extension cost per m², loft conversion cost, side-return extension cost, and planning permission cost and timelines by borough. New to this? Start with our guide to what you can build at your address.