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OSM Postcode Mapping for CH1 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 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 4 173 173 59 34.1%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
CH1 4AA 10 0
CH1 4AD 10 0
CH1 4AE 10 0
CH1 4AF 10 0
CH1 4AG 10 0
CH1 4AH 10 0
CH1 4AJ 10 0
CH1 4AL 10 0
CH1 4AN 10 0
CH1 4AP 10 0
CH1 4AQ 10 0
CH1 4AR 10 0
CH1 4AS 10 0
CH1 4AT 10 Woodlands Avenue 1
CH1 4AU 10 0
CH1 4AW 10 0
CH1 4AY 10 0
CH1 4AZ 10 0
CH1 4BA 10 0
CH1 4BB 10 0
CH1 4BD 10 0
CH1 4BE 10 Parkgate Road 4
CH1 4BF 10 0
CH1 4BG 10 0
CH1 4BH 10 0
CH1 4BJ 10 Parkgate Road 3
CH1 4BL 10 0
CH1 4BN 10 0
CH1 4BP 10 0
CH1 4BQ 10 0
CH1 4BR 10 0
CH1 4BS 10 0
CH1 4BT 10 0
CH1 4BU 10 0
CH1 4BW 10 0
CH1 4BX 10 0
CH1 4BY 10 0
CH1 4BZ 10 0
CH1 4DA 10 Cousens Way 1
CH1 4DB 10 0
CH1 4DD 10 0
CH1 4DE 10 0
CH1 4DF 10 0
CH1 4DG 10 Whipcord Lane 40
CH1 4DH 10 Whipcord Lane 20
CH1 4DJ 10 0
CH1 4DL 10 0
CH1 4DN 10 Finchett Drive 1
CH1 4DP 10 Finchett Drive 23
CH1 4DR 10 0
CH1 4DS 10 Delamere Street 3
CH1 4DT 10 0
CH1 4DU 10 2017‑01 0
CH1 4DW 10 Finchett Drive 1
CH1 4DY 10 Finchett Drive 1
CH1 4DZ 10 Whipcord Lane 1
CH1 4EA 10 0
CH1 4EB 10 0
CH1 4ED 10 0
CH1 4EE 10 Upper Northgate Street 4
CH1 4EF 10 Upper Northgate Street 1
CH1 4EG 10 0
CH1 4EH 10 0
CH1 4EJ 10 0
CH1 4EL 10 0
CH1 4EN 10 Garden Lane 3
CH1 4EQ 10 0
CH1 4EU 10 0
CH1 4EW 10 Garden Lane 3
CH1 4EX 10 0
CH1 4EY 10 0
CH1 4EZ 10 1
CH1 4FA 10 0
CH1 4FB 10 Upper Cambrian Road 1
CH1 4FD 10 0
CH1 4FE 10 0
CH1 4FF 10 0
CH1 4GA 10 0
CH1 4GB 10 2021‑04 0
CH1 4GD 10 0
CH1 4GH 10 0
CH1 4GR 10 0
CH1 4GW 10 0
CH1 4GX 10 0
CH1 4HA 10 0
CH1 4HB 10 0
CH1 4HD 10 0
CH1 4HE 10 0
CH1 4HF 10 0
CH1 4HG 10 Walpole Street 1
CH1 4HH 10 0
CH1 4HL 10 0
CH1 4HN 10 0
CH1 4HP 10 0
CH1 4HQ 10 0
CH1 4HR 10 0
CH1 4HT 10 0
CH1 4HU 10 0
CH1 4HW 10 0
CH1 4HX 10 0
CH1 4HZ 10 New Crane Street 5
CH1 4JA 10 Tower Road 12
CH1 4JB 10 Walls Avenue 16
CH1 4JD 10 New Crane Street 12
CH1 4JE 10 New Crane Street 1
CH1 4JF 10 0
CH1 4JG 10 South View Road 20
CH1 4JH 10 0
CH1 4JJ 10 0
CH1 4JL 10 New Crane Street 5
CH1 4JN 10 Charlotte Street 8
CH1 4JP 10 0
CH1 4JQ 10 South View Road 3
CH1 4JR 10 Tower Road 1
CH1 4JS 10 Vernon Road 38
CH1 4JT 10 Vernon Road 35
CH1 4JU 10 Gladstone Avenue 40
CH1 4JW 10 0
CH1 4JX 10 Gladstone Avenue 39
CH1 4JY 10 Catherine Street 31
CH1 4JZ 10 Catherine Street 37
CH1 4LA 10 0
CH1 4LB 10 Sealand Road 18
CH1 4LD 10 0
CH1 4LE 10 New Crane Street 1
CH1 4LF 10 0
CH1 4LG 10 Sealand Road 30
CH1 4LH 10 Sealand Road 27
CH1 4LJ 10 0
CH1 4LL 10 Towergate 1
CH1 4LN 10 Walls Avenue 6
CH1 4LP 10 0
CH1 4LQ 10 Sealand Road 1
CH1 4LS 10 Sealand Road 2
CH1 4LT 10 Bumpers Lane 7
CH1 4LU 10 3
CH1 4LW 10 0
CH1 4LX 10 0
CH1 4LY 10 0
CH1 4LZ 10 0
CH1 4NE 10 0
CH1 4NH 10 0
CH1 4NL 10 0
CH1 4NN 10 0
CH1 4NP 10 0
CH1 4NS 10 0
CH1 4NT 10 Bumpers Lane 2
CH1 4NW 10 0
CH1 4NX 10 0
CH1 4NZ 10 0
CH1 4PA 10 Jupiter Drive 5 2
CH1 4PG 10 0
CH1 4PH 10 0
CH1 4PL 10 Sedgefield Road 1
CH1 4PR 10 Wetherby Close 3
CH1 4PS 10 Kempton Close 8
CH1 4PT 10 Sedgefield Road 39
CH1 4PU 10 Sedgefield Road 19
CH1 4PX 10 Epsom Close 4
CH1 4PY 10 Goodwood Close 2
CH1 4PZ 10 0
CH1 4QB 10 Haydock Close 3
CH1 4QD 10 Haydock Close 14
CH1 4QG 10 Greyhound Park Road 10
CH1 4QJ 10 0
CH1 4QL 10 0
CH1 4QN 10 0
CH1 4QP 10 0
CH1 4QQ 10 2015‑10 Greyhound Park Road 1
CH1 4QR 10 0
CH1 4QS 10 0
CH1 4QT 10 0
CH1 4QU 10 2018‑10 0
CH1 4QW 10 0
CH1 4QX 10 0
CH1 4RJ 10 0
CH1 4RL 10 0
CH1 4RN 10 1
CH1 4RW 10 0
CH1 4RY 10 Old Seals Way 20
CH1 4WA 10 2013‑07 0
CH1 4XB 10 0
CH1 4XL 10 2013‑07 0
CH1 4XU 10 2015‑10 0
CH1 4XX 10 2013‑07 0
CH1 4ZA 10 0
CH1 4ZL 10 2013‑07 0
CH1 4ZP 10 0
CH1 4ZQ 10 2013‑07 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
CH1 4BJ 3 Parkgate␣Road w609446416
CH1 4BJ 3 Parkgate␣Road w609446654
CH1 4EZ 1 n344431617
CH1 4LU 3 w256304766
CH1 4LU 3 w431945998
CH1 4LU 3 w256304703
CH1 4NT 2 Bumpers␣Lane w256304691 Hartford␣Way
CH1 4PA 2 Jupiter␣Drive n6152135542
CH1 4RN 1 w256140434
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.