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OSM Postcode Mapping for SL4 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 %
SL4 1 162 158 66 41.8%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SL4 1AA 10 2021‑12 Peascod Street 41 1
SL4 1AE 10 2021‑12 2 0
SL4 1AF 10 2021‑12 1
SL4 1AG 10 2021‑12 0
SL4 1AN 10 2021‑12 0
SL4 1AT 10 2021‑12 1
SL4 1AZ 10 2021‑12 0
SL4 1BA 10 2021‑12 2
SL4 1BB 10 2021‑12 1
SL4 1BE 10 2021‑12 Sheet Street 1
SL4 1BF 10 2021‑12 0
SL4 1BG 10 2021‑12 Sheet Street 2
SL4 1BH 10 2021‑12 Sheet Street 1
SL4 1BN 10 2021‑12 0
SL4 1BP 10 2021‑12 0
SL4 1BQ 10 2021‑12 Sheet Street 1
SL4 1BY 10 2021‑12 0
SL4 1BZ 10 2021‑12 0
SL4 1DA 10 2021‑12 1
SL4 1DD 10 2021‑12 0
SL4 1DE 10 2021‑12 Peascod Street 4
SL4 1DG 10 2021‑12 Peascod Street 1
SL4 1DH 10 2021‑12 Peascod Street 3
SL4 1DL 10 2021‑12 0
SL4 1DN 10 2021‑12 Peascod Street 1
SL4 1DP 10 2021‑12 0
SL4 1DS 10 2021‑12 Peascod Street 1
SL4 1DT 10 2021‑12 Peascod Street 2
SL4 1DU 10 2021‑12 1
SL4 1DW 10 2021‑12 0
SL4 1EA 10 2021‑12 Peascod Street 2
SL4 1EB 10 2021‑12 0
SL4 1ED 10 2021‑12 William Street 2
SL4 1EF 10 2021‑12 0
SL4 1EG 10 2021‑12 1
SL4 1EH 10 2021‑12 Victoria Street 1
SL4 1EL 10 2021‑12 1
SL4 1EN 10 2021‑12 1
SL4 1EP 10 2021‑12 1
SL4 1EQ 10 2021‑12 2021‑12 0
SL4 1ER 10 2021‑12 0
SL4 1ET 10 2021‑12 1
SL4 1EU 10 2021‑12 1
SL4 1EW 10 2021‑12 1
SL4 1FD 10 2019‑01 41 0
SL4 1GF 10 2021‑12 0
SL4 1GH 10 2019‑01 41 0
SL4 1GT 10 2021‑12 41 0
SL4 1HA 10 2021‑12 0
SL4 1HB 10 2021‑12 0
SL4 1HD 10 2021‑12 0
SL4 1HE 10 2021‑12 Victoria Street 2
SL4 1HF 10 2021‑12 0
SL4 1HG 10 2021‑12 0
SL4 1HH 10 2021‑12 Alexandra Road 1
SL4 1HJ 10 2021‑12 0
SL4 1HL 10 2021‑12 0
SL4 1HN 10 2021‑12 0
SL4 1HP 10 2021‑12 0
SL4 1HQ 10 2021‑12 0
SL4 1HR 10 2021‑12 0
SL4 1HS 10 2021‑12 0
SL4 1HT 10 2021‑12 0
SL4 1HU 10 2021‑12 0
SL4 1HW 10 2021‑12 0
SL4 1HX 10 2021‑12 0
SL4 1HY 10 2021‑12 0
SL4 1HZ 10 2021‑12 0
SL4 1JA 10 2021‑12 0
SL4 1JB 10 2021‑12 0
SL4 1JD 10 2021‑12 Grove Road 1
SL4 1JE 10 2021‑12 0
SL4 1JF 10 2021‑12 0
SL4 1JG 10 2021‑12 0
SL4 1JH 10 2021‑12 0
SL4 1JJ 10 2021‑12 0
SL4 1JL 10 2021‑12 1
SL4 1JN 10 2021‑12 1
SL4 1JP 10 2021‑12 0
SL4 1JQ 10 2021‑12 0
SL4 1JU 10 2021‑12 0
SL4 1LA 10 2021‑12 0
SL4 1LB 10 2021‑12 0
SL4 1LD 10 2021‑12 High Street 2
SL4 1LH 10 2021‑12 High Street 4
SL4 1LJ 10 2021‑12 High Street 1
SL4 1LN 10 2021‑12 High Street 1
SL4 1LP 10 2021‑12 Thames Street 8
SL4 1LR 10 2021‑12 High Street 1
SL4 1LS 10 2021‑12 High Street 3
SL4 1LT 10 2021‑12 1
SL4 1LU 10 2021‑12 0
SL4 1LY 10 2021‑12 High Street 3
SL4 1NA 10 2021‑12 0
SL4 1NG 10 2021‑12 1
SL4 1NJ 10 2021‑12 1
SL4 1NQ 10 2021‑12 0
SL4 1PA 10 2021‑12 1
SL4 1PB 10 2021‑12 Market Street 2
SL4 1PD 10 2021‑12 Castle Hill 10
SL4 1PE 10 2021‑12 1
SL4 1PF 10 2021‑12 1
SL4 1PG 10 2013‑07 High Street 1
SL4 1PJ 10 2021‑12 Thames Street 6
SL4 1PL 10 2021‑12 Thames Street 11
SL4 1PQ 10 2021‑12 0
SL4 1PR 10 2021‑12 1
SL4 1PS 10 2021‑12 Thames Street 1
SL4 1PU 10 2021‑12 0
SL4 1PW 10 2021‑12 0
SL4 1PX 10 2021‑12 Thames Street 2
SL4 1QB 10 2021‑12 0
SL4 1QD 10 2021‑12 Datchet Road 1
SL4 1QE 10 2021‑12 0
SL4 1QF 10 2021‑12 1
SL4 1QG 10 2021‑12 1
SL4 1QL 10 2021‑12 0
SL4 1QN 10 2021‑12 2 0
SL4 1QP 10 2021‑12 1
SL4 1QT 10 2021‑12 River Street 4
SL4 1QW 10 2021‑12 Thames Street 2
SL4 1QX 10 2021‑12 0
SL4 1QY 10 2021‑12 0
SL4 1QZ 10 2021‑12 0
SL4 1RB 10 2021‑12 0
SL4 1RD 10 2021‑12 0
SL4 1RF 10 2021‑12 0
SL4 1RH 10 2021‑12 Thames Street 1
SL4 1RL 10 2021‑12 0
SL4 1RQ 10 2021‑12 1
SL4 1RS 10 2021‑12 0
SL4 1RT 10 2021‑12 0
SL4 1RU 10 2021‑12 Arthur Road 1
SL4 1RX 10 2021‑12 Arthur Road 1
SL4 1RY 10 2021‑12 0
SL4 1RZ 10 2021‑12 0
SL4 1SA 10 2021‑12 0
SL4 1SB 10 2021‑12 0
SL4 1SE 10 2021‑12 Vansittart Estate 2
SL4 1SH 10 2021‑12 0
SL4 1SJ 10 2021‑12 0
SL4 1SN 10 2021‑12 1
SL4 1SP 10 2021‑12 0
SL4 1SQ 10 2021‑12 0
SL4 1SR 10 2021‑12 0
SL4 1SS 10 2021‑12 0
SL4 1ST 10 2021‑12 0
SL4 1SU 10 2021‑12 0
SL4 1SX 10 2021‑12 0
SL4 1SY 10 2021‑12 0
SL4 1SZ 10 2021‑12 0
SL4 1TA 10 2021‑12 0
SL4 1TB 10 2021‑12 0
SL4 1TD 10 2021‑12 0
SL4 1TE 10 2021‑12 0
SL4 1TF 10 2021‑12 0
SL4 1TG 10 2021‑12 King Edward Court 3
SL4 1TH 10 2021‑12 0
SL4 1TQ 10 2021‑12 0
SL4 1TT 10 41 0
SL4 1TX 10 2021‑12 0
SL4 1UT 10 2021‑12 0
SL4 1WE 10 41 0
SL4 1WH 10 2013‑07 41 0
SL4 1WN 10 41 0
SL4 1WY 10 2019‑01 41 0
SL4 1WZ 10 2021‑12 41 0
SL4 1XN 10 2015‑10 41 0
SL4 1YA 10 2021‑12 0
SL4 1YB 10 2015‑10 0
SL4 1YL 10 2013‑07 41 0
SL4 1YT 10 2021‑12 41 0
SL4 1ZN 10 2021‑12 41 0
SL4 1ZQ 10 2019‑01 41 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SL4 1AF 1 w556866266
SL4 1AT 1 w556866282
SL4 1BA 2 w933664406
SL4 1BA 2 w556866273
SL4 1BB 1 w556866276
SL4 1DA 1 w556866292
SL4 1DU 1 w556866258
SL4 1EA 2 Peascod␣Street w556866270
SL4 1ED 2 William␣Street w934485060
SL4 1EG 1 w556866278
SL4 1EL 1 w556866281
SL4 1EN 1 w556866302
SL4 1EP 1 w556866306
SL4 1ET 1 w556866275
SL4 1EU 1 w556866304
SL4 1EW 1 w556866300
SL4 1JL 1 w393019289
SL4 1JN 1 w393019337
SL4 1LD 2 High␣Street w556866323
SL4 1LP 8 Thames␣Street w144154171 High␣Street
SL4 1LP 8 Thames␣Street w144158808 High␣Street
SL4 1LT 1 w556866319
SL4 1LY 3 High␣Street w930447949
SL4 1LY 3 High␣Street w556866245
SL4 1NG 1 w223153473
SL4 1NJ 1 w131188498
SL4 1PA 1 w556866238
SL4 1PE 1 w556866231
SL4 1PF 1 w556866240
SL4 1PL 11 Thames␣Street w144154159 High␣Street
SL4 1PR 1 w436839202
SL4 1PX 2 Thames␣Street w436286034
SL4 1QF 1 w369823383
SL4 1QG 1 w578093816
SL4 1QP 1 w436302552
SL4 1RQ 1 r5496080
SL4 1SN 1 w144154166
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.