N20 postcode district
N20, in the N (North London) postcode area, has 536 live and 373 terminated postcodes in the ONS Postcode Directory of August 2026, and OS Open Names files 160 roads under it.
| postcode area | N (North London) |
|---|---|
| live postcodes | 536 |
| terminated postcodes | 373 |
| sectors | 4 |
| roads listed | 160 |
| companies registered | 3,204 |
| centroid | 51.62925, -0.17431 |
| directory release | 2026-08 |
Postcodes and sectors
536 of the district's 909 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 51.62925, -0.17431, which locates the district, not a building.
| sector | live | terminated |
|---|---|---|
| N20 0 | 260 | 112 |
| N20 2 | 10 | 68 |
| N20 8 | 125 | 81 |
| N20 9 | 141 | 112 |
Companies registered in N20
Companies House lists 3,204 companies with a registered office in N20; 1,275 of them at addresses shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.
Places OS Open Names lists for N20
- London
- Barnet
- Greater London
- Friern Barnet
Roads filed under N20
Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.
- Allum Way
- Applewood Close
- Ashbourne Avenue
- Athenaeum Road
- Attfield Close
- Badgers Croft
- Balfour Grove
- Barfield Avenue
- Barnet Lane
- Barnwood Close
- Bawtry Road
- Baxendale
- Beech Avenue
- Belmont Close
- Beresford Avenue
- Birley Road
- Blakeney Close
- Bruce Gardens
- Buckingham Avenue
- Cadbury Close
- Cameron Close
- Capel Close
- Chandos Avenue
- Charnwood Place
- Chestnut Lane
- Church Close
- Church Crescent
- Church Path
- Church Way
- Coppice Walk
- Dannatt Close
- Darcy Close
- Denham Road
- Deodora Close
- Derwent Crescent
- Diarmid Road
- Domville Close
- Downland Close
- Elder Close
- Elkanette Mews
- Elmstead Close
- Farnham Close
- Fernwood Crescent
- Fitzwilliam Close
- Foxley Mews
- Franklin Close
- Friars Avenue
- Friern Barnet Lane
- Friern Mount Drive
- Golfside Close
- Grange Avenue
- Grangeview Road
- Great Bushey Drive
- Green Road
- Greenside Close
- Greenway
- Greenway Close
- Gresham Avenue
- Hadar Close
- Harmsworth Way
all 160 roads
- Harrison Close
- Hayward Road
- High Road
- Hill Crescent
- Hobart Close
- Horseshoe Lane
- Irvine Close
- Kendal Close
- Kingswood Close
- Langton Avenue
- Laurel Way
- Lawrence Campe Close
- Lilia Mews
- Lime Grove
- Links Drive
- Longland Drive
- Loring Road
- Lovegrove Way
- Lynton Mead
- Macaret Close
- Magdalene Gardens
- Manor Drive
- Manus Way
- Marlborough Close
- Marlborough Gardens
- Maryrose Way
- Maxfield Close
- Mcready Road
- Mellish Close
- Miles Way
- Millson Close
- Myddelton Park
- Naylor Road
- Northcliffe Drive
- Oaklands Road
- Oakleigh Avenue
- Oakleigh Close
- Oakleigh Crescent
- Oakleigh Gardens
- Oakleigh Mews
- Oakleigh Park North
- Oakleigh Park South
- Oakleigh Road North
- Oak Tree Drive
- Orchard Avenue
- Oxford Gardens
- Park Way
- Pine Grove
- Pollard Road
- Porch Way
- Priory Close
- Quayle Crescent
- Queens Avenue
- Queens Well Avenue
- Raleigh Drive
- Rasper Road
- Ridgeview Road
- Rowben Close
- Russell Gardens
- Russell Lane
- Russell Road
- Sherwood Street
- Sherwood Terrace
- Shrublands Close
- Simmons' Way
- Simmons Close
- Southway
- St James Avenue
- St James Close
- St Margarets Avenue
- St Ninian's Court
- Swan Lane
- Sweets Way
- Temple Avenue
- Thatcham Gardens
- The Close
- The Firs
- The Mount
- The Orchard
- The Pastures
- Thorndene Avenue
- Thorneycroft Road
- Totteridge Common
- Totteridge Lane
- Totteridge Village
- Toye Avenue
- Tulett Avenue
- Turners Close
- Ventnor Drive
- Weirdale Avenue
- Well Grove
- West Hill Way
- Whetstone Close
- Whetstone Gardens
- White Orchards
- Willow End
- Wykeham Rise
- York Way
- A1000
- A5109
Check an address in N20
The same road list through the API, from the outward code alone:
curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=N20" \ -H "Authorization: Bearer $SPAW_KEY"
Common questions about N20
- What does an N20 postcode tell you?
- That the address lies in the N20 district of the N (North London) postcode area, and the place OS Open Names most often lists first for its postcodes is London. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 536 live postcodes.
Where the counts come from
- ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
- os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
- uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0
What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.
Data synced on 2026-11-01: the newest version among the datasets listed above.
Districts nearest N20
- N121.6 km
- EN42.4 km
- EN52.8 km
- N113.0 km
- N143.0 km
- N33.5 km
- N104.3 km
- N24.4 km
- NW74.4 km
- N135.0 km
- N215.2 km
- N225.5 km
- Every district
- How a British address is written
- Check any address
distance between the districts' centroids
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