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OSM Postcode Mapping for SW1P 3 Postal Sector

The circles on the map above are the postcode unit 'centriods' from Code-Point Open, 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 data may be freely used in OpenStreetMap, with the suggested source tag code-point_open

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. Only those points with a codepoint PQI less than or equal to 40 are show in 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 %
SW1P 3 100 91 22 24.2%

All units within this sector:

Unit Street Name PQI ML Mapped
SW1P 3AA Great George Street 10 1
SW1P 3AD Great George Street 10 1
SW1P 3AE Great George Street 10 3
SW1P 3AF 10 2 0
SW1P 3AL 10 2 0
SW1P 3AT 10 0
SW1P 3AY 10 0
SW1P 3AZ Great Smith Street 10 7 2
SW1P 3BD Parliament Square 10 2 1
SW1P 3BH 10 273 0
SW1P 3BL Great Smith Street 10 7 1
SW1P 3BN Great Smith Street 10 7 1
SW1P 3BP 10 0
SW1P 3BQ 10 0
SW1P 3BT Great Smith Street 10 1
SW1P 3BU Great Smith Street 10 1
SW1P 3DJ Great Smith Street 10 7 1
SW1P 3DN 10 7 0
SW1P 3DP Marsham Street 10 3
SW1P 3DQ 10 0
SW1P 3DR Marsham Street 10 2 1
SW1P 3DS 10 2 0
SW1P 3DW 10 0
SW1P 3EE Broad Sanctuary 10 1
SW1P 3EP 10 0
SW1P 3ER 10 2 0
SW1P 3EU Smith Square 10 2 1
SW1P 3HA 10 0
SW1P 3HB 10 0
SW1P 3HE 10 0
SW1P 3HF 10 0
SW1P 3HL 10 0
SW1P 3HN 10 0
SW1P 3HP 10 0
SW1P 3HQ 10 2 0
SW1P 3HS 10 0
SW1P 3HT 10 0
SW1P 3HX 10 2 0
SW1P 3HZ 10 0
SW1P 3JA 10 2 0
SW1P 3JH 10 0
SW1P 3JJ 10 2 0
SW1P 3JQ 10 2 0
SW1P 3JR 10 2 0
SW1P 3JS 10 0
SW1P 3JT 10 0
SW1P 3JU 10 2 0
SW1P 3JX 10 0
SW1P 3JY 10 0
SW1P 3LA 10 0
SW1P 3LB 10 0
SW1P 3LD 10 0
SW1P 3LL 10 0
SW1P 3LN 10 0
SW1P 3LR 10 0
SW1P 3LT 10 0
SW1P 3LW 10 0
SW1P 3LZ 10 0
SW1P 3NB 10 0
SW1P 3NE 10 0
SW1P 3NG 10 0
SW1P 3NL 10 0
SW1P 3NP 10 2 0
SW1P 3NQ 10 0
SW1P 3NR 10 0
SW1P 3NY Dean's Yard 10 2 1
SW1P 3NZ 10 7 0
SW1P 3PA Dean's Yard 10 2
SW1P 3PB 10 0
SW1P 3PD 10 0
SW1P 3PF 10 0
SW1P 3PG 10 0
SW1P 3PH 10 0
SW1P 3PJ 10 0
SW1P 3PL 10 0
SW1P 3PQ 10 0
SW1P 3PS Great Smith Street 10 7 2
SW1P 3QB 10 0
SW1P 3QE 10 0
SW1P 3QH 10 0
SW1P 3QL 10 0
SW1P 3QX 10 0
SW1P 3QY Tufton Street 10 1
SW1P 3QZ Tufton Street 10 1
SW1P 3RA 10 0
SW1P 3RB Tufton Street 10 2
SW1P 3RD 10 0
SW1P 3RE Romney Street 10 2
SW1P 3RF 10 0
SW1P 3RT 10 0
SW1P 3RX Great College Street 10 1
SW1P 3SE 10 0
SW1P 3SF 10 2 0
SW1P 3SH 10 0
SW1P 3WP 10 273 0
SW1P 3WQ 10 273 0
SW1P 3WS 10 273 0
SW1P 3WT 10 273 0
SW1P 3XA 10 273 0
SW1P 3XQ 10 273 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SW1P 3AZ 2 Great␣Smith␣Street w359221826
SW1P 3AZ 2 Great␣Smith␣Street w359221823
SW1P 3BN 1 Great␣Smith␣Street w359221836
SW1P 3DJ 1 Great␣Smith␣Street w359221819
SW1P 3PA 2 Dean's␣Yard w359221844
SW1P 3PS 2 Great␣Smith␣Street w359221829
SW1P 3PS 2 Great␣Smith␣Street w359221833
SW1P 3QY 1 Tufton␣Street w359221853
SW1P 3QZ 1 Tufton␣Street w359221840
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.