As noted in a previous post we've been working on adding to our Postcode Series of maps, the Postcode Districts are already online.
We've been working on creating the Postcode Sector maps which cover most of the cities across the UK using OS District level mapping, overlaid with postcode sector data e.g. SW4 1, SW4 3, etc.
Some of these maps are now online here, and we'll be adding the remaining maps as they are made, so if you don't see the city you are interested in online yet please get in touch and we'll push it to the front of the list.