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OSM Postcode Mapping for SL1 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 %
SL1 4 102 95 65 68.4%

All units within this sector:

Unit Street Name PQI ML Mapped
SL1 4AA 10 1
SL1 4AG 10 0
SL1 4AN Galvin Road 10 1
SL1 4AQ 10 0
SL1 4AU 10 0
SL1 4AX Buckingham Avenue 10 1
SL1 4AY 10 0
SL1 4BA 10 0
SL1 4BD 10 0
SL1 4BE 10 2 0
SL1 4BF 10 2 0
SL1 4BG 10 0
SL1 4BH 10 2 0
SL1 4DE 10 1
SL1 4DG Ajax Avenue 10 2 1
SL1 4DH 10 0
SL1 4DX Bath Road 10 2
SL1 4ED 10 0
SL1 4EE 10 1
SL1 4EH 10 2 0
SL1 4EL 50 2 0
SL1 4EP 10 1
SL1 4EQ 10 1
SL1 4ER 10 0
SL1 4EU 10 1
SL1 4FJ 10 167 0
SL1 4FN 10 167 0
SL1 4FR 10 167 0
SL1 4FW 10 167 0
SL1 4FX 10 167 0
SL1 4GP 10 167 0
SL1 4HA 10 1
SL1 4HB 10 1
SL1 4HE 10 1
SL1 4HF 10 1
SL1 4HG 10 1
SL1 4HL 10 1
SL1 4HR 10 1
SL1 4HY 10 1
SL1 4JA 10 1
SL1 4JB 10 1
SL1 4JG 10 1
SL1 4JU Dundee Road 10 1
SL1 4JW 10 0
SL1 4JX 10 167 0
SL1 4LA 10 1
SL1 4LE 10 0
SL1 4LG 10 1
SL1 4LH Banbury Avenue 10 3
SL1 4LN 10 1
SL1 4LP Plymouth Road 10 2
SL1 4LR 10 1
SL1 4LU Buckingham Avenue 10 0
SL1 4LZ 10 1
SL1 4NB Buckingham Avenue 10 3
SL1 4NH 10 1
SL1 4NJ 10 1
SL1 4NL Buckingham Avenue 10 2
SL1 4NN 10 1
SL1 4NX 10 167 0
SL1 4PF Buckingham Avenue 10 1
SL1 4PG 10 0
SL1 4PH 10 1
SL1 4PJ 10 0
SL1 4PL 10 1
SL1 4PN Buckingham Avenue 10 2
SL1 4PY 10 1
SL1 4QA 10 0
SL1 4QB 10 0
SL1 4QD 10 1
SL1 4QQ 10 0
SL1 4QT 10 1
SL1 4QU 10 1
SL1 4QZ Liverpool Road 10 4
SL1 4RA 10 1
SL1 4RD 10 1
SL1 4RF 10 2
SL1 4RH 10 1
SL1 4RP 10 1
SL1 4RT 10 0
SL1 4RY 10 1
SL1 4SF 10 0
SL1 4SG 10 167 0
SL1 4SH 10 1
SL1 4SP 10 1
SL1 4SS 10 1
SL1 4ST 10 1
SL1 4SW 10 0
SL1 4SY 10 1
SL1 4SZ 10 1
SL1 4TD 10 167 0
SL1 4TJ 10 2
SL1 4TN 10 0
SL1 4TP 10 0
SL1 4TQ 10 0
SL1 4TS 10 0
SL1 4TT 10 1
SL1 4TU Edinburgh Avenue 10 1
SL1 4UE 10 1
SL1 4UF 10 1
SL1 4UG 10 167 0
SL1 4UJ 10 167 0
SL1 4UN 10 1
SL1 4UT 10 1
SL1 4WA 10 167 0
SL1 4WB 10 167 0
SL1 4WE 10 167 0
SL1 4WS 10 0
SL1 4WU 10 167 0
SL1 4WW 10 167 0
SL1 4XA 10 0
SL1 4XB 10 1
SL1 4XE 10 0
SL1 4XH 10 0
SL1 4XL Farnham Road 10 1
SL1 4XN 10 0
SL1 4XP 10 0
SL1 4XQ Farnham Road 10 1
SL1 4XS 10 0
SL1 4XT 10 0
SL1 4XU 10 0
SL1 4XX 10 1
SL1 4XY 10 0
SL1 4XZ 10 0
SL1 4YA 10 0
SL1 4YF 10 167 0
SL1 4YJ 10 167 0
SL1 4YL 10 167 0
SL1 4YR 10 0
SL1 4YS 10 0
SL1 4YT 10 0
SL1 4ZA 10 0
SL1 4ZL 10 167 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SL1 4AA 1 w81530291
SL1 4DE 1 w81633586
SL1 4DX 2 Bath␣Road w547105440
SL1 4EE 1 w547105395
SL1 4EP 1 w547105447
SL1 4EQ 1 w225909396
SL1 4EU 1 w547105439
SL1 4HA 1 w225909410
SL1 4HB 1 w81633548
SL1 4HE 1 w547105382
SL1 4HF 1 w547105392
SL1 4HG 1 w547105391
SL1 4HL 1 w225909387
SL1 4HR 1 w393239997
SL1 4HY 1 w81633598
SL1 4JA 1 w393239081
SL1 4JB 1 w393239080
SL1 4JG 1 w393239067
SL1 4LA 1 w393239083
SL1 4LG 1 w184714032
SL1 4LH 3 Banbury␣Avenue w393241514
SL1 4LH 3 Banbury␣Avenue w712277377
SL1 4LN 1 w225909392
SL1 4LP 2 Plymouth␣Road w393239076
SL1 4LR 1 w686507558
SL1 4LZ 1 w81633650
SL1 4NB 3 Buckingham␣Avenue w459600814
SL1 4NH 1 w225909401
SL1 4NJ 1 w547105436
SL1 4NN 1 w686507548
SL1 4PH 1 w225909400
SL1 4PL 1 w459600842
SL1 4PN 2 Buckingham␣Avenue w459600845
SL1 4PY 1 w393239063
SL1 4QD 1 w393248300
SL1 4QT 1 w81633748
SL1 4QU 1 w81633600
SL1 4RA 1 w547105358
SL1 4RD 1 w547105357
SL1 4RF 2 w547105435
SL1 4RF 2 w225909398
SL1 4RP 1 w547105364
SL1 4RY 1 w225909413
SL1 4SH 1 w225909403
SL1 4SP 1 w547105414
SL1 4SS 1 w547105400
SL1 4ST 1 w547105420
SL1 4SY 1 w547105423
SL1 4SZ 1 w459600843
SL1 4TJ 2 w547105406
SL1 4TJ 2 w547105410
SL1 4TT 1 w393248305
SL1 4UE 1 w459600839
SL1 4UF 1 w459600828
SL1 4UN 1 w686507557
SL1 4UT 1 w81633487
SL1 4XB 1 w459600827
SL1 4XX 1 w547105413
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.