Code-Point with Polygons

Overview

Over 1.6 million postcodes all mapped out

Code-Point with Polygons is derived from AddressBase , the Ordnance Survey dataset that provides National Grid reference (NGref) coordinates for each postal delivery address in Great Britain.

Visualise your postcode extents

Codepoint with Polygons provides notional extents for every postcode unit in GB for easy visualisation and analysis at a national scale.

Vertical Streets

Vertical street polygons allow easy identification of multiple postcodes within the same building.

Precise data

Postcode polygons created using the addresses we can locate the most precisely creating high confidence in the accuracy of the polygon data.

Manage your risks better

Display postcode boundaries on a map, then add contours and your own claims data. This is a great way to identify low-lying postcodes, so you can quote for insurance at a price that reflects higher flood risks.

How to get this product

I'm a business

You’re welcome to try out this data for free under our Data Exploration Licence or download our sample data.

Once you’re ready to use this product internally you should contact one of our Partners unless you’re in the Energy & Infrastructure sector, in which case please contact us so that we can advise you on next steps.

If you’re looking create your own product and services, you will need to sign up to our Framework Contract (Partners) to use this product commercially or distribute it.

I'm a government organisation

Media & publishing

Case studies

OS data helps keep hospital open in Somerset

Ordnance Survey data, including Code-Point with Polygons provided critical evidence leading to Somerset Clinical Commissioning Group keeping stroke services at two hospitals.

Read the full case study

View all case studies

Technical specification

Key Features	What this product offers
Format	Vector Tiles, GeoPackage, ESRI Shapefile, MapInfo MID/MIF or MapInfo TAB
Data structure	Vector
Attributes	Includes notional polygons; vertical streets data; postcode units; eastings and northings; NHS® health authority codes, administrative codes; PO box indicator; and types of delivery points
Scale	Up to 1:1250
Update frequency	Quarterly - April, July, October and January
Supply	Download
Coverage	Great Britain
Support documentation	Overview (PDF) Technical specification (PDF)

FAQs

How is this data supplied and what do I need to use it?

Why can't I find a particular postcode in Code-Point with polygons?

Urban development creates a need for more postcodes, and sometimes the supply runs low. To allow for future growth, Royal Mail re-codes areas every so often. For example, it might rename all or part of the RG1 area to RG 10.

Postcodes have a hierarchy of areas, districts sectors, and units - the lowest level. When changes by Royal Mail result in postcodes no longer being valid, we take them out of this product.

Why do postcode fields contain varying number of spaces?

When used in an address, a single space should separate the inward code (incode) from the outward code (outcode). But within the supplied Code-Point products, there may be 0, 1 or 2 spaces between these two elements.

The postcode field is set at seven characters. The varying number of spaces in this field depends on the number of characters in the postcode. Rules in the production system also require seven characters in the postcode. Our User guide explains how to create single-space postcodes.