# London's private-rent map

> Mean, median, quartiles and sample size for every bedroom category and London postcode district.

- Category: Housing
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `londons-private-rent-map`
- Source: [ONS](https://www.ons.gov.uk/economy/inflationandpriceindices/adhocs/3389privaterentalmarketinlondonapril2025tomarch2026)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/londons-private-rent-map](https://londongraph.com/g/londons-private-rent-map)
- Machine-readable record: [https://londongraph.com/data/londons-private-rent-map](https://londongraph.com/data/londons-private-rent-map)

## Methodology

ONS London private-rental statistics by postcode district, joined to LondonGraph's nearest-centroid postcode cells. These cells are an analytical tessellation, not Royal Mail boundaries. Readers can select bedroom category, mean, median, quartiles, interquartile range and published sample size; the workbook does not publish an all-bedroom district median. The purposive sample is not composition-adjusted and must not be treated as a rent index; '-' and '..' remain suppressed rather than zero.

## Visualisations

- [Postcode map](https://londongraph.com/g/londons-private-rent-map): Select a bedroom category and published rent statistic for every postcode cell. Caveat: The ONS purposive sample is not composition-adjusted and is not a rent index.
- [Distribution](https://londongraph.com/g/londons-private-rent-map?view=distribution): Inspect the selected postcode statistic around its London median and quartiles. Caveat: Published sample sizes vary by postcode and bedroom category; suppressed values remain absent.
- [Bedroom ladder](https://londongraph.com/g/londons-private-rent-map?view=bedroom-ladder): Compare bedroom-specific median rents within a selected postcode district.
- [Median vs spread](https://londongraph.com/g/londons-private-rent-map?view=price-spread): Compare two-bedroom median rent with the published interquartile range. Caveat: A wider interquartile range describes sample dispersion, not measurement uncertainty.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.