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OSM Postcode Mapping for N20 9 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 %
N20 9 136 134 39 29.1%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
N20 9AA 10 0
N20 9AB 10 0
N20 9AE 10 0
N20 9AG 10 0
N20 9AH 10 0
N20 9AL 10 0
N20 9AN 10 0
N20 9AQ 10 0
N20 9AR 10 0
N20 9AS 10 0
N20 9AT 10 0
N20 9AU 10 Oakleigh Park North 14
N20 9AW 10 0
N20 9AX 10 0
N20 9AY 10 2013‑07 0
N20 9AZ 10 0
N20 9BA 10 0
N20 9BB 10 0
N20 9BD 10 0
N20 9BE 10 0
N20 9BF 10 0
N20 9BH 10 High Road 1
N20 9BL 10 0
N20 9BN 10 0
N20 9BP 10 0
N20 9BS 10 High Road 4
N20 9BT 10 0
N20 9BU 10 Buckingham Avenue 12
N20 9BW 10 0
N20 9BX 10 Buckingham Avenue 11
N20 9BZ 10 0
N20 9DA 10 0
N20 9DB 10 0
N20 9DD 10 0
N20 9DE 10 Buckingham Avenue 17
N20 9DF 10 0
N20 9DG 10 Buckingham Avenue 25
N20 9DH 10 Buckingham Avenue 12
N20 9DJ 10 Friern Mount Drive 6
N20 9DL 10 Friern Mount Drive 25
N20 9DN 10 Friern Mount Drive 13
N20 9DP 10 Friern Mount Drive 15
N20 9DQ 10 0
N20 9DT 10 0
N20 9DX 10 0
N20 9DZ 10 0
N20 9EA 10 0
N20 9EB 10 0
N20 9ED 10 0
N20 9EE 10 0
N20 9EF 10 0
N20 9EG 10 0
N20 9EH 10 0
N20 9EJ 10 0
N20 9EL 10 0
N20 9EN 10 0
N20 9EQ 10 2013‑07 0
N20 9ER 10 0
N20 9ES 10 0
N20 9ET 10 0
N20 9EU 10 0
N20 9EW 10 0
N20 9EX 10 0
N20 9EY 10 2020‑07 25 0
N20 9EZ 10 Oakleigh Road North 3
N20 9FA 10 2 0
N20 9FB 10 2021‑09 0
N20 9FD 50 2 0
N20 9FJ 10 2021‑09 0
N20 9GP 10 25 0
N20 9HA 10 0
N20 9HB 10 0
N20 9HD 10 0
N20 9HE 10 Oakleigh Road North 6
N20 9HG 10 0
N20 9HH 10 High Road 6
N20 9HJ 10 High Road 1
N20 9HP 10 0
N20 9HQ 10 0
N20 9HR 10 High Road 4
N20 9HS 10 High Road 2
N20 9HT 10 2015‑10 0
N20 9HU 10 2018‑04 0
N20 9HW 10 2017‑04 0
N20 9HX 10 High Road 2
N20 9JA 10 0
N20 9JB 10 0
N20 9JD 10 0
N20 9JE 10 0
N20 9JF 10 2018‑10 25 0
N20 9JG 10 0
N20 9JH 10 0
N20 9JJ 10 0
N20 9JL 10 0
N20 9JN 10 0
N20 9JP 10 0
N20 9JR 10 0
N20 9JS 10 0
N20 9JT 10 0
N20 9JU 10 1
N20 9JW 10 0
N20 9JX 10 0
N20 9LB 10 0
N20 9LD 10 0
N20 9LG 10 Whetstone 10
N20 9LH 10 Blakeney Close 12
N20 9LJ 10 St. Margaret's Avenue 35
N20 9LL 10 Whetstone 33
N20 9LN 10 High Road 2
N20 9LP 10 2013‑07 High Road 0
N20 9LR 10 2018‑10 25 0
N20 9LZ 10 0
N20 9NH 10 0
N20 9PF 10 High Road 1
N20 9PH 10 High Road 1
N20 9PJ 10 High Road 7
N20 9PL 10 0
N20 9PN 10 0
N20 9PP 10 High Road 9
N20 9PQ 10 0
N20 9PR 10 Walfield Avenue 21
N20 9PS 10 Walfield Avenue 38
N20 9PT 10 High Road 9
N20 9PU 10 0
N20 9PW 10 0
N20 9PX 10 0
N20 9QA 10 0
N20 9QB 10 0
N20 9QD 10 0
N20 9QE 10 0
N20 9QG 10 Franklin Close 19
N20 9QH 10 Totteridge Lane 8
N20 9QJ 10 Totteridge Lane 12
N20 9QL 10 Whetstone 1
N20 9QP 10 Totteridge Lane 4
N20 9QT 10 0
N20 9QU 10 0
N20 9QX 10 Whetstone 1
N20 9RA 10 0
N20 9RN 10 0
N20 9RP 10 Maryrose Way 5
N20 9RR 10 0
N20 9RS 10 0
N20 9RT 10 0
N20 9RW 10 0
N20 9UL 10 2013‑07 0
N20 9WN 10 0
N20 9WS 10 2019‑07 25 0
N20 9WU 10 0
N20 9WX 10 25 0
N20 9WY 10 0
N20 9WZ 10 0
N20 9XY 10 2013‑07 0
N20 9YJ 10 0
N20 9YU 10 0
N20 9YZ 10 2019‑04 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
N20 9EZ 3 Oakleigh␣Road␣North w455556518 Oakleigh␣Road
N20 9HH 6 High␣Road n310897070 High␣Rd
N20 9JU 1 w38574289
N20 9QP 4 Totteridge␣Lane n5585853828 Whetstone
N20 9QP 4 Totteridge␣Lane w169699266 Whetstone
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.