Coverage and methodology

Sold prices are HM Land Registry Price Paid Data, published under the Open Government Licence. Each row is a registered residential transfer: price, date, property type, and address parts. Pryce matches those transfers onto Overture building footprints, using OS Open UPRN, energy certificates, and National Statistics lookups to place the sale. Map cartography uses OpenStreetMap and CARTO.

Price Paid Data covers England and Wales. That is what the live map colours today — and that file is free. Scotland’s bulk sales file is a paid Registers of Scotland licence, honestly a little pricey; we expect to integrate it as Pryce grows with your help. Northern Ireland (Land & Property Services) has no official sold-price file to buy, only area averages and counts; it is not in the sold-price tiles. Product language stays UK because that is how people search and how the map is meant to grow.

• Transfers that have not yet been registered
• Most unregistered land
• Some sales that are not at arm's length
• Rental listings and sold-subject-to-contract figures
• Asking prices in the sold-price tiles. Those colours are HM Land Registry Price Paid. An optional listings overlay can show asking homes for the current view from the site you pick. That overlay is not Price Paid.

Land Registry publishes Price Paid monthly. Pryce reloads after each release. A completion can appear several weeks later, once the transfer is registered.

Street-level crime is live on the map: Settings, then Overlays, then Crime. Pick one or more groups. Nothing selected hides the layer. Selected groups are summed once into one heatmap.

Nuisance is anti-social behaviour. Includes personal, environmental and nuisance anti-social behaviour.

Property theft is burglary, bicycle theft, vehicle crime, shoplifting, and other theft. Burglary: Includes offences where a person enters a house or other building with the intention of stealing. Bicycle theft: Includes the taking without consent or theft of a pedal cycle. Vehicle crime: Includes theft from or of a vehicle or interference with a vehicle. Shoplifting: Includes theft from shops or stalls. Other theft: Includes theft by an employee, blackmail and making off without payment.

Street theft is theft from the person and robbery. Theft from the person: Includes crimes that involve theft directly from the victim (including handbag, wallet, cash, mobile phones) but without the use or threat of physical force. Robbery: Includes offences where a person uses force or threat of force to steal.

Violence and sexual offences is the police.uk type of that name. Includes offences against the person such as common assaults, Grievous Bodily Harm and sexual offences.

Damage, drugs and public order is criminal damage and arson, public order, drugs, possession of weapons, and other crime. Criminal damage and arson: Includes damage to buildings and vehicles and deliberate damage by fire. Public order: Includes offences which cause fear, alarm or distress. Drugs: Includes offences related to possession, supply and production. Possession of weapons: Includes possession of a weapon, such as a firearm or knife. Other crime: Includes forgery, perjury and other miscellaneous crime.

The feed is data.police.uk street-level crime under the Open Government Licence. Tiles hold the last 12 months of the newest archive that contains a month, currently August 2025 through July 2026. Each published coordinate is a snap point, not the exact address.

Greater Manchester Police does not publish the police.uk street file. Their monthly changelog has listed crime, outcomes, and stop-and-search as "not provided" from March 2025 through at least April 2026. PoliceWorks cannot export the feed. Their next records system, Mark43, is due in spring 2027, and street-level data will not resume the day it switches on. Home Office and ONS publish Greater Manchester force and borough totals without coordinates. Those totals are not on this heatmap.

Over the current 12-month tile window, 603 offences inside Greater Manchester were recorded by other forces, not Greater Manchester Police. 121 of them are in the City of Manchester. Forces that placed them include Lancashire (174), the Metropolitan Police (126), and Derbyshire (92), plus 26 other forces. GMP recorded none. There is no Greater Manchester Police or British Transport Police street file in the extract.

Crime geography follows which forces publish street files. That is not the same footprint as Price Paid, which is England and Wales on the sold-price tiles. The heatmap is not a complete picture of crime, not a safety rating, and not a reason a street is good or bad.

Coverage

Flood risk is one layer: Settings, then Overlays, then Flood risk, then On. Off hides it. England and Wales share one overlay for rivers, the sea, and surface water. Scotland and Northern Ireland flood risk are not on the map.

England uses the Environment Agency’s National Flood Risk Assessment (NaFRA2), present day only. Climate-change scenarios are not drawn. Wales uses Natural Resources Wales Flood Risk Assessment Wales. In Wales, rivers and sea include flood defences. Surface water is rainfall, and in Wales that includes small watercourses.

Risk bands

The chance bands are the wide coverage of where flooding is possible. England has four official bands: Very low, Low, Medium, and High. High means at least a 1 in 30 chance in a year. Very low means under 1 in 1,000. Where bands overlap, the higher chance wins. Grey areas the Environment Agency leaves unclassified are left off the picture. No colour on the map does not mean a place is free of flood risk.

Wales has three bands: High, Medium, and Low. There is no Very low band in the Wales product.

Depth overlay

In England, a 0.6 metre depth layer for rivers and sea, and for surface water, sits on top of the bands. Where water is expected to be at least 0.6 m deep, that pixel is drawn darker. That is the fine detail. It is not a separate toggle. The depth overlay does not cover Wales.

What we do not claim

This is not a Pryce score. It is official flood-risk mapping for homework on the map, not a prediction that a plot will or will not flood. Present-day assessment only — no climate-change scenarios. No Scotland or Northern Ireland flood risk. No 0.6 m depth layer for Wales.

City pages report median price and sale count from the same transfers, grouped by postcode outward code. A page only shows a number we can compute from the database. If a city has no sales in the current extract, we do not invent one.