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OSM Postcode Mapping for SA3 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 2024‑07‑12 09:54:26 Z.)

District Sector Units Geo. Units Mapped %
SA3 3 88 88 21 23.9%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
SA3 3AA 10 0
SA3 3AB 10 2022‑10 0
SA3 3AG 10 0
SA3 3AH 10 0
SA3 3AJ 10 0
SA3 3AL 10 0
SA3 3AN 10 0
SA3 3AP 10 0
SA3 3AQ 10 0
SA3 3AR 10 Manselfield Road 2
SA3 3AS 10 0
SA3 3AT 10 0
SA3 3AU 10 0
SA3 3AX 10 0
SA3 3AY 10 0
SA3 3AZ 10 0
SA3 3BA 10 Broadmead Crescent 18
SA3 3BB 10 0
SA3 3BN 10 0
SA3 3BP 10 Summercliffe Chalet Park 81
SA3 3BR 10 0
SA3 3BS 10 0
SA3 3BT 10 0
SA3 3BU 10 Caswell Road 12
SA3 3DA 10 Whitestone Avenue 35
SA3 3DB 10 Whitestone Road 13
SA3 3DD 10 Caswell Bay Road 28
SA3 3DE 10 Oldway 49
SA3 3DF 10 0
SA3 3DG 10 0
SA3 3DH 10 Lime Kiln Lane 8
SA3 3DJ 10 Oldway 3
SA3 3DL 10 Kilfield Road 17
SA3 3DN 10 Kilfield Road 25
SA3 3DP 10 0
SA3 3DQ 10 0
SA3 3DR 10 0
SA3 3DS 10 0
SA3 3DT 10 0
SA3 3DU 10 0
SA3 3DW 10 4
SA3 3DX 10 0
SA3 3DY 10 0
SA3 3EH 10 0
SA3 3EJ 10 Bishopston Road 2
SA3 3EL 10 0
SA3 3EN 10 Bishopston Road 2
SA3 3EP 10 0
SA3 3ER 10 0
SA3 3ES 10 0
SA3 3ET 10 0
SA3 3EU 10 0
SA3 3EW 10 0
SA3 3EX 10 0
SA3 3EY 10 0
SA3 3EZ 10 0
SA3 3GA 10 0
SA3 3HA 10 Pwlldu Lane 2
SA3 3HB 10 Brandy Cove Road 3
SA3 3HD 10 0
SA3 3HE 10 0
SA3 3HF 10 0
SA3 3HG 10 0
SA3 3HH 10 0
SA3 3HJ 10 0
SA3 3HL 10 0
SA3 3JA 10 0
SA3 3JB 10 Mayals Road 6
SA3 3JD 10 0
SA3 3JG 10 1
SA3 3JH 10 0
SA3 3JJ 10 0
SA3 3JL 10 0
SA3 3JN 10 0
SA3 3JP 10 The Glebe 17
SA3 3JQ 10 0
SA3 3JR 10 0
SA3 3JS 10 0
SA3 3JT 10 2
SA3 3JU 10 0
SA3 3JW 10 0
SA3 3JX 10 0
SA3 3JY 10 0
SA3 3JZ 10 0
SA3 3LA 10 0
SA3 3LB 10 0
SA3 3LD 10 0
SA3 3LE 10 0
SA3 3WT 10 2013‑07 0
SA3 3WW 10 2015‑10 17 0
SA3 3WY 10 2013‑07 0
SA3 3YG 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SA3 3DD 28 Caswell␣Bay␣Road w89731993
SA3 3DD 28 Caswell␣Bay␣Road w89731979
SA3 3DD 28 Caswell␣Bay␣Road w89731971
SA3 3DW 4 w261443998
SA3 3DW 4 w261444010
SA3 3DW 4 w261443979
SA3 3DW 4 w261444008
SA3 3HA 2 Pwlldu␣Lane w1200671637 Pwll␣Du␣Lane
SA3 3JG 1 n3581852169
SA3 3JT 2 n3578244640
SA3 3JT 2 n3578244641
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.