The circles on the map above are the postcode unit 'centriods' from Code-Point Open, under the Open Government Licence. The 'centriod' is calculated by taking the average of the coordinates of all the delivery points with that postcode, and then snapping that location to the nearest delivery point in that postcode. The data may be freely used in OpenStreetMap, but please make sure you understand it first. Also please only add postcodes to objects representing addressable entities; do not add the postcode centroids as themslves. Suggested source tag code-point_open
The circles are coloured by whether or not there is at least one OSM object with that value in its addr:postcode tag. Click on a point to see the postcode. The numbers in brackets are the number of OSM objects with that postcode.
The centroids are the location of the nearest 'delivery point' to the arithmetic mean of the coordinates of all the delivery points within that unit. Those points with a codepoint PQI greater than 40 are excluded from the map above. (Higher values are typically not geographically accurate. In particular, PQI=50 is used for new postcodes before the location has been determined. The location given for such postcodes seems to be derived from other existing postcodes with similar units letters, which may not be close to the new postcode.)
The pale blue lines from the circles join each Code-Point Open centroid to the mean coordiantes of all the OSM objects with that postcode. (For ways an relations, the centre of the rectangular bounding box is used at the coordinates for the OSM object.) Long lines may indicate missing or incorrect OSM objects for that postcode. In particular, if all the postcodes in a givne unit are correctly mapped, the circle should be located on the nearest delivery point within that postcode to the other end of the blue line.
The OSM data for the number of objects with each unit comes from Taginfo GB. It is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. (Current data is from 1970‑01‑01 00:00:00 Z.) The data used to compute the OSM mean position comes from the Overpass API and is updated less frequently, usually about once a week. (Current data is from 2024‑03‑23 18:50:30 Z.)
District | Sector | Units | Geo. Units | Mapped | % |
---|---|---|---|---|---|
SW1H | 0 | 57 | 55 | 18 | 32.7% |
All units within this sector:
Unit | PQI | First Seen | Last Seen | Street Name | ML | Mapped |
---|---|---|---|---|---|---|
SW1H 0AA | 10 | 0 | ||||
SW1H 0AB | 10 | 0 | ||||
SW1H 0AD | 10 | Palmer Street | 4 | |||
SW1H 0AE | 10 | 2 | 0 | |||
SW1H 0AF | 10 | 2 | 0 | |||
SW1H 0AH | 10 | 2015‑10 | 0 | |||
SW1H 0AJ | 10 | 2022‑07 | 0 | |||
SW1H 0AP | 10 | 2019‑07 | 0 | |||
SW1H 0AQ | 10 | Caxton Street | 1 | |||
SW1H 0AR | 10 | 2 | 0 | |||
SW1H 0AS | 10 | 2 | 0 | |||
SW1H 0AT | 10 | 2021‑12 | 0 | |||
SW1H 0AX | 10 | 2 | 1 | |||
SW1H 0AY | 10 | 2 | 0 | |||
SW1H 0AZ | 10 | Broadway | 2 | |||
SW1H 0BB | 10 | 1 | ||||
SW1H 0BD | 10 | 0 | ||||
SW1H 0BE | 10 | 0 | ||||
SW1H 0BF | 10 | 2021‑09 | 0 | |||
SW1H 0BG | 10 | 2016‑10 | 0 | |||
SW1H 0BH | 10 | Broadway | 6 | |||
SW1H 0BL | 10 | 3 | 0 | |||
SW1H 0BN | 50 | 3 | 0 | |||
SW1H 0BP | 10 | 2022‑10 | 2 | 0 | ||
SW1H 0BT | 10 | 0 | ||||
SW1H 0BU | 10 | 0 | ||||
SW1H 0DB | 10 | 0 | ||||
SW1H 0DJ | 10 | Dacre Street | 2 | |||
SW1H 0DX | 10 | 0 | ||||
SW1H 0DY | 10 | 3 | 0 | |||
SW1H 0ET | 10 | Victoria Street | 1 | |||
SW1H 0EU | 10 | Victoria Street | 2 | 1 | ||
SW1H 0EX | 10 | Victoria Street | 1 | |||
SW1H 0GT | 10 | 0 | ||||
SW1H 0HA | 10 | 2013‑07 | 2 | 0 | ||
SW1H 0HN | 10 | 281 | 0 | |||
SW1H 0HP | 10 | 2013‑07 | 2 | 0 | ||
SW1H 0HU | 10 | 4 | 0 | |||
SW1H 0HW | 10 | Victoria Street | 3 | |||
SW1H 0HX | 10 | 4 | 0 | |||
SW1H 0HY | 10 | 4 | 0 | |||
SW1H 0HZ | 10 | 4 | 0 | |||
SW1H 0NB | 10 | 0 | ||||
SW1H 0ND | 10 | 2 | 0 | |||
SW1H 0NE | 50 | 2 | 0 | |||
SW1H 0NF | 10 | 2018‑01 | 0 | |||
SW1H 0NJ | 10 | 2016‑10 | Victoria Street | 0 | ||
SW1H 0NN | 10 | 0 | ||||
SW1H 0NP | 10 | Victoria Street | 1 | |||
SW1H 0NR | 10 | 2013‑07 | 0 | |||
SW1H 0NX | 10 | 0 | ||||
SW1H 0NY | 10 | 2013‑07 | 0 | |||
SW1H 0NZ | 10 | 2018‑04 | 4 | 0 | ||
SW1H 0PH | 10 | Palmer Street | 3 | |||
SW1H 0PT | 10 | 0 | ||||
SW1H 0PX | 10 | 0 | ||||
SW1H 0PY | 10 | Caxton Street | 1 | |||
SW1H 0QD | 10 | 0 | ||||
SW1H 0QE | 10 | 0 | ||||
SW1H 0QH | 10 | 0 | ||||
SW1H 0QL | 10 | 2 | 0 | |||
SW1H 0QS | 10 | 2 | 0 | |||
SW1H 0QT | 10 | 2 | 0 | |||
SW1H 0QU | 10 | Caxton Street | 1 | |||
SW1H 0QW | 10 | Caxton Street | 2 | |||
SW1H 0QY | 10 | 2 | 0 | |||
SW1H 0RG | 10 | 3 | 0 | |||
SW1H 0RH | 10 | Butler Place | 1 | |||
SW1H 0RJ | 10 | 0 | ||||
SW1H 0RS | 10 | 2013‑07 | 2 | 0 | ||
SW1H 0SA | 10 | 2013‑07 | 0 | |||
SW1H 0TL | 10 | Victoria Street | 1 | |||
SW1H 0UZ | 10 | 281 | 0 | |||
SW1H 0WB | 10 | 2013‑07 | 0 | |||
SW1H 0WY | 10 | 2020‑10 | 281 | 0 | ||
SW1H 0WZ | 10 | 2013‑07 | 0 | |||
SW1H 0XA | 10 | 0 | ||||
SW1H 0XH | 10 | 2016‑10 | 0 | |||
SW1H 0XN | 10 | 2017‑01 | 0 | |||
SW1H 0XS | 10 | 2019‑07 | 281 | 0 | ||
SW1H 0XX | 10 | 5 | 0 | |||
SW1H 0XZ | 10 | 2013‑07 | 0 | |||
SW1H 0YE | 10 | 2013‑07 | 0 | |||
SW1H 0YF | 10 | 2019‑01 | 0 | |||
SW1H 0ZB | 10 | 5 | 0 | |||
SW1H 0ZE | 10 | 2013‑07 | 0 |
Units with street mismatches in this sector:
Unit | Mapped | Dominant Street | OSM Object | Tagged Street |
---|---|---|---|---|
SW1H 0AX | 1 | n1773757562 | ||
SW1H 0BB | 1 | n4278671706 | ||
SW1H 0BH | 6 | Broadway | w544897770 | The␣Broadway |