As well as the areas hash of all areas, the results include a shortcuts key that provides a quick lookup of council, ward, and WMC IDs. If the area is two-tier, the council and ward values will be objects with keys of county and district.

If your postcode was SW1A 1AA you would load /postcode/SW1A1AA

By default the response is in JSON, if you want a human readable page then append ‘.html’ to the url /postcode/SW1A1AA.html