Price growth
Returns year-on-year price growth for a UK postcode or outcode, computed from HM Land Registry sold prices. Growth is the percentage change in the median sold price over the last 12 months versus the prior 12 months. Required scope:areas:read · Cost: 1 request
Authorization: Bearer paid_your_key). The endpoint also accepts a logged-in Clerk session when called from the dashboard. Anonymous requests are rejected.
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Methodology & caveats
This figure is the year-on-year change in the median sold price for the outcode, not a hedonic or repeat-sales index. Because an outcode median is sensitive to the mix of properties that happened to sell in each window, treat single-outcode figures as indicative rather than precise — a quarter heavy with larger detached sales can lift the median without any underlying price movement. Aggregate areas with a lowsample_size are noisier; widen to the outcode and lean on a longer-running area index where you need a robust trend.