# Detached, terraced, flat

> Four property types, three decades, and a gap that keeps widening.

- Category: Housing
- Cadence: monthly
- Status: Published on a monthly cadence.
- Dataset key: `price-types`
- Source: [Land Registry](https://www.gov.uk/government/collections/price-paid-data)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/detached-terraced-flat](https://londongraph.com/g/detached-terraced-flat)
- Machine-readable record: [https://londongraph.com/data/detached-terraced-flat](https://londongraph.com/data/detached-terraced-flat)

## Methodology

Average London price by property type each month since 1995, from the UK House Price Index. Each series is a separate average rather than a split of one, so they answer 'what does this kind of home cost' rather than 'what share of the market is it'.

## Visualisations

- [Property-type prices](https://londongraph.com/g/detached-terraced-flat): Follow the four official property-type average-price series.
- [Indexed comparison](https://londongraph.com/g/detached-terraced-flat?view=indexed): Set every property type's first visible value to 100.
- [First to latest](https://londongraph.com/g/detached-terraced-flat?view=gap): Compare each property type at the first and latest visible month.

## 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.