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OSM Postcode Mapping for SN1 3 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 comes from Taginfo GB. It is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. (Current data is from 1970‑01‑01 00:00:00 Z.) The data used to compute the OSM mean position comes from the Overpass API and is updated less frequently, usually about once a week. (Current data is from 2024‑03‑23 18:50:30 Z.)

District Sector Units Geo. Units Mapped %
SN1 3 159 158 53 33.5%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SN1 3AD 10 Drove Road 2
SN1 3AE 10 Drove Road 17
SN1 3AF 10 0
SN1 3AG 10 Drove Road 1
SN1 3AH 10 1
SN1 3AJ 10 Victoria Road 4
SN1 3AL 10 Victoria Road 2
SN1 3AQ 10 Drove Road 16
SN1 3AS 10 Victoria Road 1
SN1 3AU 10 Drove Road 1
SN1 3AW 10 Victoria Road 1
SN1 3AY 10 0
SN1 3BB 10 Victoria Road 1
SN1 3BD 10 Victoria Road 17
SN1 3BE 10 2018‑04 0
SN1 3BF 10 0
SN1 3BG 10 Albert Street 1
SN1 3BH 10 Victoria Road 2 1
SN1 3BL 10 Victoria Road 2 2
SN1 3BP 10 0
SN1 3BU 10 Victoria Road 1
SN1 3DB 10 0
SN1 3DD 10 0
SN1 3DE 10 0
SN1 3DF 10 0
SN1 3DP 10 Newport Street 3
SN1 3DQ 10 2
SN1 3DR 10 0
SN1 3DT 10 0
SN1 3DU 10 Newport Street 3
SN1 3DX 10 Newport Street 14
SN1 3EB 10 The Square 2
SN1 3ED 10 Horder Mews 2
SN1 3EE 10 0
SN1 3EF 10 Dammas Lane 4
SN1 3EG 10 High Street 9
SN1 3EJ 10 2016‑10 0
SN1 3EN 10 High Street 1
SN1 3EP 10 High Street 9
SN1 3ET 10 0
SN1 3EX 10 0
SN1 3EY 10 0
SN1 3EZ 10 2023‑04 0
SN1 3FA 10 0
SN1 3FB 10 0
SN1 3FD 10 0
SN1 3FE 10 0
SN1 3FF 10 0
SN1 3FG 10 0
SN1 3FH 10 0
SN1 3FJ 10 Charlotte Mews 2
SN1 3FL 10 Little London 1
SN1 3FN 10 0
SN1 3FP 10 0
SN1 3FQ 10 0
SN1 3FR 50 2024‑01 0
SN1 3FS 10 2021‑09 0
SN1 3FT 10 2024‑01 0
SN1 3HA 10 Brock End 3
SN1 3HB 10 Cricklade Street 9
SN1 3HE 10 Cricklade Street 1
SN1 3HF 10 Church Road 7
SN1 3HG 10 Cricklade Street 10
SN1 3HH 10 Union Row 4
SN1 3HJ 10 Albert Street 6
SN1 3HL 10 0
SN1 3HN 10 Belle Vue Road 16
SN1 3HP 10 0
SN1 3HQ 10 Belle Vue Road 20
SN1 3HR 10 0
SN1 3HS 10 0
SN1 3HT 10 Charlotte Mews 1
SN1 3HU 10 Little London 2
SN1 3HW 10 0
SN1 3HX 10 0
SN1 3HY 10 Albert Street 3
SN1 3HZ 10 2023‑07 Chapel Corner 8
SN1 3JA 10 0
SN1 3JB 10 0
SN1 3JD 10 0
SN1 3JE 10 0
SN1 3JF 10 0
SN1 3JG 10 Eastcott Hill 4
SN1 3JH 10 0
SN1 3JJ 10 0
SN1 3JL 10 0
SN1 3JN 10 0
SN1 3JP 10 0
SN1 3JR 10 0
SN1 3JS 10 Prospect Hill 1
SN1 3JT 10 0
SN1 3JU 10 0
SN1 3JW 10 0
SN1 3JX 10 North Street 1
SN1 3JY 10 0
SN1 3LA 10 0
SN1 3LB 10 King William Street 1
SN1 3LD 10 0
SN1 3LE 10 0
SN1 3LF 10 0
SN1 3LG 10 Prospect Place 1
SN1 3LH 10 0
SN1 3LJ 10 0
SN1 3LL 10 0
SN1 3LQ 10 Prospect Place 1
SN1 3LR 10 Eastcott Road 1
SN1 3LS 10 0
SN1 3LT 10 Eastcott Road 1
SN1 3LU 10 0
SN1 3LW 10 0
SN1 3LX 10 0
SN1 3LY 10 0
SN1 3LZ 10 Savernake Street 2
SN1 3NA 10 0
SN1 3NB 10 0
SN1 3ND 10 0
SN1 3NE 10 0
SN1 3NF 10 0
SN1 3NG 10 0
SN1 3NH 10 0
SN1 3NJ 10 0
SN1 3NL 10 0
SN1 3NN 10 0
SN1 3NP 10 0
SN1 3NQ 10 0
SN1 3NR 10 0
SN1 3NS 10 0
SN1 3NT 10 0
SN1 3NU 10 0
SN1 3NW 10 0
SN1 3NX 10 0
SN1 3NY 10 0
SN1 3NZ 10 0
SN1 3PA 10 0
SN1 3PB 10 0
SN1 3PD 10 0
SN1 3PE 10 0
SN1 3PF 10 0
SN1 3PG 10 0
SN1 3PH 10 0
SN1 3PJ 10 0
SN1 3PL 10 0
SN1 3PN 10 0
SN1 3PP 10 0
SN1 3PQ 10 0
SN1 3PR 10 0
SN1 3PS 10 0
SN1 3PT 10 0
SN1 3PU 10 0
SN1 3PW 10 0
SN1 3PX 10 0
SN1 3PY 10 Clifton Street 1
SN1 3PZ 10 0
SN1 3QA 10 0
SN1 3QB 10 0
SN1 3QD 10 0
SN1 3QF 10 0
SN1 3RA 10 Hoopers Place 3
SN1 3RT 10 Chandler Close 11
SN1 3RW 10 0
SN1 3UN 10 2019‑01 105 0
SN1 3UQ 10 37 0
SN1 3UZ 10 0
SN1 3XL 10 105 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SN1 3AH 1 w143763306
SN1 3DQ 2 w545346605
SN1 3DQ 2 w309834142
SN1 3DU 3 Newport␣Street w1226440995 Station␣Approach
SN1 3EP 9 High␣Street n11283656220 Wood␣Street
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.