Data endpoints

/data/index.json

National, London and regional aggregates, the methodology block, the dataset version and the full district list. The entry point: everything else hangs off it. Example.

/data/districts/{OUTCODE}.json

One postcode district: median and mean price per square metre with confidence interval, p20 to p80 spread, tenure and property-type splits, quarterly and yearly trends, mix weights, ten-year growth, top sectors and 30 preview sales. Uppercase outcode in the filename. Example.

/data/sectors/{OUTCODE}.json

Every postcode sector of one district in a single bundle, each with its own statistics and trends where the sample supports them. Example.

/data/transactions/{OUTCODE}.json

Individual sales for one district over a 60-month window, columnar (a cols array plus rows arrays): date, price, price per square metre, floor area, type, tenure, new-build flag, postcode, address, coordinates. Example.

/data/regions/{slug}.json

Every district in one region with its median price per square metre, matched-sale and total sale counts, plus the post towns of the region. Example.

/data/towns/{slug}.json

Every district of one post town, for the town rollup pages. Same fields as the region file, at town grain. Example.

/data/home-lists.json

The 12 most expensive and 12 best-value districts by median price per square metre, among districts with at least 100 matched sales in a shared window. Example.

/data/rankings/{slug}.json

One league table of 50 ranked districts, self-describing: kind, scope, metric, minimum matched sales and window travel with the rows. Example.

/data/compare/summaries.json

Compact per-district summaries used to build any head-to-head comparison client-side, plus the list of curated pairs. Example.

/data/search-index.json

Compact tuples of [id, kind, name, lat, lng] for every published district and sector. Powers the search box; useful for building your own. Example.

/data/districts.csv

One row per published district: medians, quantiles, counts, window, dataset version and page URLs. Unformatted values, RFC 4180 quoting. The spreadsheet-friendly summary of the whole dataset. Example.