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OSM Postcode Mapping for CH1 1 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 %
CH1 1 102 101 33 32.7%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
CH1 1AA 10 2020‑04 Saint John Street 1
CH1 1AB 10 0
CH1 1AD 10 0
CH1 1AF 10 0
CH1 1AG 10 0
CH1 1AH 10 2018‑10 119 0
CH1 1AR 10 0
CH1 1BW 10 2013‑07 4 0
CH1 1DA 10 St John Street 8
CH1 1DD 10 Little St John Street 1
CH1 1DE 10 Newgate Street 3
CH1 1DF 10 Pepper Street 5
CH1 1DP 10 Liverpool Road 0
CH1 1DQ 10 2020‑07 0
CH1 1DW 10 Pepper Street 0
CH1 1EA 10 Pepper Street 1
CH1 1ED 10 0
CH1 1EE 10 0
CH1 1EF 10 0
CH1 1EL 10 0
CH1 1ER 10 0
CH1 1ES 10 0
CH1 1FB 10 2015‑10 0
CH1 1FF 10 2020‑10 119 0
CH1 1FL 10 0
CH1 1FP 10 2015‑10 0
CH1 1GH 10 2018‑10 119 0
CH1 1HA 10 Foregate Street 4
CH1 1HB 10 Foregate Street 6
CH1 1HD 10 0
CH1 1HE 10 Foregate Street 3
CH1 1HF 10 Foregate Street 9
CH1 1HG 10 0
CH1 1HH 10 Eastgate Street 1
CH1 1HJ 10 0
CH1 1HL 10 Saint John Street 1
CH1 1HN 10 0
CH1 1HP 10 Foregate Street 1
CH1 1HT 10 0
CH1 1HW 10 2015‑10 0
CH1 1JG 10 0
CH1 1JT 10 0
CH1 1JU 10 2013‑07 0
CH1 1JZ 10 119 0
CH1 1LB 10 0
CH1 1LD 10 0
CH1 1LE 10 0
CH1 1LF 10 0
CH1 1LG 10 Eastgate Street 4
CH1 1LH 10 0
CH1 1LN 10 Godstall Lane 2
CH1 1LQ 10 Eastgate Street North Row 2
CH1 1LR 10 Eastgate Street 1
CH1 1LT 10 Eastgate Street 1
CH1 1LX 10 2013‑07 0
CH1 1NA 10 Foregate Street 1
CH1 1NE 10 0
CH1 1NG 10 Bridge Street 17
CH1 1NJ 10 0
CH1 1NL 10 0
CH1 1NN 10 0
CH1 1NP 10 0
CH1 1NQ 10 Bridge Street 12
CH1 1NW 10 Bridge Street East Row 10
CH1 1NX 10 2013‑07 0
CH1 1NZ 10 0
CH1 1PD 10 0
CH1 1PP 10 0
CH1 1PW 10 0
CH1 1QE 10 0
CH1 1QF 10 0
CH1 1QG 10 0
CH1 1QJ 10 0
CH1 1QL 10 0
CH1 1QN 10 0
CH1 1QP 10 0
CH1 1QQ 10 Grosvenor Park Road 1
CH1 1QS 10 0
CH1 1QU 10 0
CH1 1QX 10 0
CH1 1QY 10 0
CH1 1QZ 10 0
CH1 1RA 10 0
CH1 1RB 10 2013‑07 0
CH1 1RD 10 0
CH1 1RE 10 0
CH1 1RF 10 0
CH1 1RG 10 0
CH1 1RH 10 0
CH1 1RJ 10 0
CH1 1RL 10 0
CH1 1RN 10 0
CH1 1RP 10 Duke Street 1
CH1 1RQ 10 Albion Street 1
CH1 1RR 10 0
CH1 1RS 10 Lower Bridge Street 10
CH1 1RT 10 0
CH1 1RU 10 Lower Bridge Street 2
CH1 1RW 10 0
CH1 1RX 10 0
CH1 1RY 10 0
CH1 1RZ 10 0
CH1 1SA 10 Lower Bridge Street 1
CH1 1SB 10 City Walls 1
CH1 1SD 10 The Groves 4
CH1 1SE 10 Hamilton Place 2 1
CH1 1SF 10 2013‑07 4 0
CH1 1SG 10 4 0
CH1 1SH 10 0
CH1 1SJ 10 0
CH1 1SL 10 Castle Drive 3
CH1 1SN 10 0
CH1 1SQ 10 4 0
CH1 1SW 10 4 0
CH1 1SZ 10 1
CH1 1TB 10 4 0
CH1 1TD 10 2013‑07 0
CH1 1UA 10 2019‑10 0
CH1 1XA 10 2018‑10 119 0
CH1 1XG 10 Grosvenor Street 1
CH1 1XP 10 0
CH1 1XS 10 0
CH1 1XW 10 2018‑10 Eastgate Street 119 1
CH1 1YP 10 2013‑07 0
CH1 1YQ 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
CH1 1DA 8 St␣John␣Street w278834289 Saint␣John␣Street
CH1 1LQ 2 Eastgate␣Street␣North␣Row n4779096239
CH1 1LQ 2 Eastgate␣Street␣North␣Row n8440831268 Eastgate␣Street
CH1 1RS 10 Lower␣Bridge␣Street n2431032989 Lower␣Bridge␣St
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.