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OSM Postcode Mapping for W1H 4 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 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 %
W1H 4 106 96 5 5.2%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
W1H 4AA 10 2016‑10 0
W1H 4AD 10 0
W1H 4AG 10 0
W1H 4AL 10 0
W1H 4AN 10 0
W1H 4AP 10 0
W1H 4AT 10 0
W1H 4AW 10 0
W1H 4BS 10 0
W1H 4DJ 10 0
W1H 4DL 10 0
W1H 4DR 10 0
W1H 4EG 10 2 0
W1H 4EU 10 2 0
W1H 4EX 10 0
W1H 4EY 10 0
W1H 4EZ 10 0
W1H 4HA 10 0
W1H 4HB 10 Harcourt Street 1
W1H 4HD 10 0
W1H 4HE 10 Harcourt Street 1
W1H 4HF 10 2 0
W1H 4HG 10 0
W1H 4HH 10 0
W1H 4HJ 10 0
W1H 4HL 10 0
W1H 4HN 10 0
W1H 4HP 10 2 0
W1H 4HQ 10 0
W1H 4HR 10 2 0
W1H 4HS 10 0
W1H 4HU 10 0
W1H 4HW 10 0
W1H 4HX 10 Harcourt Street 1
W1H 4JA 10 0
W1H 4JB 10 3 0
W1H 4JD 10 3 0
W1H 4JE 10 3 0
W1H 4JF 10 3 0
W1H 4JG 10 3 0
W1H 4JH 10 3 0
W1H 4JJ 10 3 0
W1H 4JL 10 3 0
W1H 4JN 10 0
W1H 4JP 10 4 0
W1H 4JQ 10 3 0
W1H 4JR 10 4 0
W1H 4JS 10 4 0
W1H 4JU 10 0
W1H 4JW 10 4 0
W1H 4LA 10 2 0
W1H 4LB 10 2 0
W1H 4LD 10 0
W1H 4LE 10 0
W1H 4LG 10 0
W1H 4LH 10 0
W1H 4LJ 10 0
W1H 4LL 10 0
W1H 4LN 10 0
W1H 4LP 10 0
W1H 4LQ 10 0
W1H 4LW 10 0
W1H 4NA 10 Homer Street 0
W1H 4NB 10 0
W1H 4ND 10 0
W1H 4NE 10 0
W1H 4NF 10 0
W1H 4NG 10 0
W1H 4NH 10 0
W1H 4NJ 10 0
W1H 4NL 10 0
W1H 4NN 10 0
W1H 4NP 10 0
W1H 4NQ 10 0
W1H 4NR 10 0
W1H 4NS 10 0
W1H 4NT 10 0
W1H 4NU 10 0
W1H 4NW 10 Homer Street 1
W1H 4NX 10 0
W1H 4NY 10 2 0
W1H 4NZ 10 2 0
W1H 4PA 10 11 0
W1H 4PB 10 11 0
W1H 4PD 10 11 0
W1H 4PE 10 11 0
W1H 4PF 10 11 0
W1H 4PG 10 11 0
W1H 4PH 10 11 0
W1H 4PJ 10 0
W1H 4PL 10 0
W1H 4PP 10 11 0
W1H 4PQ 10 Seymour Place 11 1
W1H 4PR 10 11 0
W1H 4PS 10 11 0
W1H 4PT 10 0
W1H 4PU 10 0
W1H 4PW 10 0
W1H 4QA 10 0
W1H 4QB 10 0
W1H 4QD 10 0
W1H 4QE 10 0
W1H 4QF 10 0
W1H 4QG 10 0
W1H 4QH 10 0
W1H 4QJ 10 0
W1H 4QL 10 0
W1H 4QN 10 2 0
W1H 4QQ 10 0

Units with street mismatches in this sector:

No mismatches found in this sector.

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.