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OSM Postcode Mapping for SL1 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 %
SL1 1 181 177 59 33.3%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SL1 1AA 10 170 0
SL1 1AE 10 1
SL1 1AG 10 0
SL1 1AL 10 170 0
SL1 1AN 10 0
SL1 1AQ 10 1
SL1 1AW 10 0
SL1 1AY 10 2 0
SL1 1BD 10 2 1
SL1 1BH 10 1
SL1 1BN 10 1
SL1 1BX 10 2 0
SL1 1BY 10 1
SL1 1BZ 10 1
SL1 1DB 10 0
SL1 1DD 10 0
SL1 1DG 10 0
SL1 1DH 10 0
SL1 1DJ 10 1
SL1 1DL 10 0
SL1 1DN 10 0
SL1 1DP 10 2017‑10 0
SL1 1DQ 10 0
SL1 1DS 10 0
SL1 1DT 10 0
SL1 1DY 10 0
SL1 1DZ 10 0
SL1 1EA 10 2015‑10 0
SL1 1ED 10 2013‑07 170 0
SL1 1EE 10 0
SL1 1EH 10 0
SL1 1EL 10 High Street 1
SL1 1EP 10 2 0
SL1 1EQ 10 0
SL1 1ER 10 2 0
SL1 1EU 10 2019‑07 0
SL1 1EX 10 0
SL1 1FB 10 2013‑07 170 0
SL1 1FE 10 2 1
SL1 1FF 10 1
SL1 1FG 10 0
SL1 1FQ 10 2
SL1 1FS 10 170 0
SL1 1FT 10 2019‑01 170 0
SL1 1GA 10 2019‑01 170 0
SL1 1GE 10 1
SL1 1GF 10 1
SL1 1GG 10 2 1
SL1 1GN 10 0
SL1 1GQ 10 0
SL1 1GR 10 0
SL1 1GW 10 0
SL1 1GX 10 0
SL1 1GZ 10 William Street 1
SL1 1HD 10 170 0
SL1 1HE 10 0
SL1 1HF 10 0
SL1 1HL 10 1
SL1 1HP 10 1
SL1 1HQ 10 0
SL1 1JF 10 1
SL1 1JH 10 0
SL1 1JJ 10 0
SL1 1JL 10 1
SL1 1JN 10 High Street 2
SL1 1JP 10 1
SL1 1JQ 10 1
SL1 1JR 10 1
SL1 1JS 10 0
SL1 1JU 10 1
SL1 1LA 10 170 0
SL1 1LD 10 2019‑01 170 0
SL1 1LE 10 High Street 1
SL1 1LH 10 0
SL1 1LN 10 0
SL1 1LR 10 2019‑01 170 0
SL1 1LU 10 0
SL1 1NB 10 High Street 2
SL1 1ND 10 2017‑10 0
SL1 1NE 10 1
SL1 1NF 10 0
SL1 1NG 10 0
SL1 1NH 10 0
SL1 1NJ 10 0
SL1 1NL 10 0
SL1 1NN 10 0
SL1 1NP 10 0
SL1 1NR 10 0
SL1 1NS 10 0
SL1 1NT 10 0
SL1 1NU 10 0
SL1 1NW 10 0
SL1 1NX 10 0
SL1 1NY 10 0
SL1 1NZ 10 0
SL1 1PA 10 1
SL1 1PB 10 1
SL1 1PD 10 1
SL1 1PE 10 1
SL1 1PF 10 1
SL1 1PG 10 1
SL1 1PJ 10 0
SL1 1PL 10 1
SL1 1PP 10 0
SL1 1PQ 10 Church Street 1
SL1 1PR 10 0
SL1 1PS 10 1
SL1 1PT 10 0
SL1 1PU 10 0
SL1 1PW 10 1
SL1 1PX 10 0
SL1 1QA 10 0
SL1 1QE 10 0
SL1 1QF 10 2013‑07 0
SL1 1QH 10 0
SL1 1QJ 10 0
SL1 1QN 10 0
SL1 1QP 10 1
SL1 1QR 10 0
SL1 1QS 10 0
SL1 1QW 10 0
SL1 1QX 10 0
SL1 1QZ 10 0
SL1 1RA 10 0
SL1 1RB 10 0
SL1 1RD 10 0
SL1 1RE 10 0
SL1 1RF 10 0
SL1 1RG 10 1
SL1 1RH 10 2013‑07 0
SL1 1RN 10 0
SL1 1RP 10 0
SL1 1RQ 10 0
SL1 1RR 10 Aldin Avenue South 0
SL1 1RS 10 0
SL1 1RT 10 0
SL1 1RU 10 0
SL1 1RW 10 1
SL1 1RX 10 0
SL1 1RZ 10 0
SL1 1SA 10 2013‑07 0
SL1 1SB 10 0
SL1 1SD 10 0
SL1 1SE 10 0
SL1 1SF 10 0
SL1 1SG 10 1
SL1 1SJ 10 1
SL1 1SN 10 0
SL1 1SP 10 0
SL1 1SR 10 0
SL1 1SU 10 Uxbridge Road 1
SL1 1SW 10 0
SL1 1SX 10 0
SL1 1SZ 10 1
SL1 1TA 10 0
SL1 1TB 10 1
SL1 1TD 10 0
SL1 1TE 10 0
SL1 1TF 10 0
SL1 1TG 10 0
SL1 1TH 10 0
SL1 1TJ 10 0
SL1 1TN 10 0
SL1 1TP 10 1
SL1 1TQ 10 2 0
SL1 1TS 10 0
SL1 1TT 10 1
SL1 1TW 10 0
SL1 1TX 10 1
SL1 1UA 10 1
SL1 1UB 10 1
SL1 1UD 10 0
SL1 1UE 10 1
SL1 1UG 10 1
SL1 1UH 10 0
SL1 1UL 10 0
SL1 1UN 10 0
SL1 1UP 10 0
SL1 1UR 10 0
SL1 1US 10 0
SL1 1UT 10 0
SL1 1UW 10 0
SL1 1UX 10 0
SL1 1WW 10 2019‑01 170 0
SL1 1WX 10 2019‑01 170 0
SL1 1XA 10 0
SL1 1XB 10 0
SL1 1XD 10 0
SL1 1XL 10 0
SL1 1XN 10 0
SL1 1XQ 10 0
SL1 1XS 10 2013‑07 2 0
SL1 1XU 10 1
SL1 1XW 10 Wellington Street 1
SL1 1XY 10 William Street 1
SL1 1XZ 10 0
SL1 1YG 10 0
SL1 1YH 10 0
SL1 1YL 10 1
SL1 1YP 10 1
SL1 1YU 10 0
SL1 1YW 10 1
SL1 1ZG 10 170 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SL1 1AE 1 w548463427
SL1 1AQ 1 w548463362
SL1 1BD 1 w548463346
SL1 1BH 1 w548463360
SL1 1BN 1 w548463334
SL1 1BY 1 w548463331
SL1 1BZ 1 w618798087
SL1 1DJ 1 w548463389
SL1 1FE 1 w548463385
SL1 1FF 1 w548463379
SL1 1FQ 2 r2725040
SL1 1GE 1 w548463373
SL1 1GF 1 w548463371
SL1 1GG 1 w548463393
SL1 1HL 1 w548463392
SL1 1HP 1 w548463394
SL1 1JF 1 w548463388
SL1 1JL 1 w548463391
SL1 1JN 2 High␣Street w548463436
SL1 1JP 1 w548463432
SL1 1JQ 1 w548463386
SL1 1JR 1 w548463437
SL1 1JU 1 w548463328
SL1 1NB 2 High␣Street w548463377
SL1 1NE 1 w548463378
SL1 1PA 1 w548463416
SL1 1PB 1 w548463442
SL1 1PD 1 w548463420
SL1 1PE 1 w548463440
SL1 1PF 1 w548463435
SL1 1PG 1 w548463395
SL1 1PL 1 w548463426
SL1 1PS 1 w548463453
SL1 1PW 1 w548463459
SL1 1QP 1 w548463319
SL1 1RG 1 w548463414
SL1 1RW 1 w548463468
SL1 1SG 1 w548463477
SL1 1SJ 1 w409049134
SL1 1SZ 1 w548463424
SL1 1TB 1 w801943593
SL1 1TP 1 w548463404
SL1 1TT 1 w550410766
SL1 1TX 1 w548463370
SL1 1UA 1 w548463383
SL1 1UB 1 w548463368
SL1 1UE 1 w548463367
SL1 1UG 1 w548463314
SL1 1XU 1 w69364465
SL1 1YL 1 w548463309
SL1 1YP 1 w548463307
SL1 1YW 1 r7830697
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.