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OSM Postcode Mapping for SW1H 9 Postal Sector

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 is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. The data used to compute the OSM mean position is updated less frequently, usually about once a week.

District Sector Units Geo. Units Mapped %
SW1H 9 41 40 11 27.5%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SW1H 9AA 10 0
SW1H 9AB 10 0
SW1H 9AD 10 0
SW1H 9AG 10 3 0
SW1H 9AH 10 0
SW1H 9AJ 10 Petty France 3 2
SW1H 9AP 10 0
SW1H 9BL 10 0
SW1H 9BN 10 2013‑07 0
SW1H 9BP 10 Dartmouth Street 1
SW1H 9BT 10 2015‑10 0
SW1H 9BU 10 0
SW1H 9BX 10 2013‑07 0
SW1H 9DA 10 2 0
SW1H 9DJ 10 0
SW1H 9DL 10 0
SW1H 9DP 10 0
SW1H 9EA 10 Petty France 1
SW1H 9ET 10 0
SW1H 9EU 10 0
SW1H 9EX 10 Petty France 3
SW1H 9GL 10 3 0
SW1H 9HE 10 3 0
SW1H 9HF 10 3 0
SW1H 9HG 10 3 0
SW1H 9HP 10 Old Queen Street 2
SW1H 9HQ 10 2 0
SW1H 9JA 10 Old Queen Street 1
SW1H 9JD 10 2017‑04 0
SW1H 9JH 10 2 0
SW1H 9JJ 10 2 0
SW1H 9JX 10 4 0
SW1H 9JY 10 4 0
SW1H 9LA 10 Tothill Street 1
SW1H 9LH 10 Tothill Street 3
SW1H 9LJ 10 0
SW1H 9LL 10 Tothill Street 1
SW1H 9LQ 10 Tothill Street 1
SW1H 9NA 10 Tothill Street 2 1
SW1H 9NB 10 0
SW1H 9NE 10 2 0
SW1H 9NH 10 0
SW1H 9NJ 10 2 0
SW1H 9NP 10 2 0
SW1H 9NQ 10 2 0
SW1H 9NS 10 2 0
SW1H 9ST 10 0
SW1H 9WA 10 2013‑07 0
SW1H 9WH 10 2019‑01 0
SW1H 9XB 10 2013‑07 0
SW1H 9XX 10 2013‑07 0
SW1H 9ZD 10 2013‑07 0
SW1H 9ZL 10 2013‑07 0
SW1H 9ZQ 10 283 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SW1H 9AJ 2 Petty␣France w531373354 Old␣Queen␣Street
Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). Data derived in part using Code-Point Open under the Open Government Licence v3; Contains OS data © Crown copyright and database right 2020; Contains Royal Mail data © Royal Mail copyright and Database right 2016; Contains National Statistics data © Crown copyright and database right 2020.