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← 🏛️ Authority Intelligence
Can I extend my house?
One postcode gets you: the designations that actually constrain your plot, your council's measured approval rate for extensions, and named recent approvals on streets near you — the precedents an officer can't ignore.
What this is: data intelligence computed from public planning records — application registers, decision notices, appeal decision letters and national designation polygons (planning.data.gov.uk). Every figure states its source and sample. What this is not: formal planning advice, and designation boundaries are checked against the postcode centroid, not your exact property line. For certainty on your specific case, speak to a chartered planning consultant — our specialist directory can help.