Royal Mail PAF · London

SW1A Postcode — Chelsea

SW1A is a postcode district in Chelsea, South West London, London, England. Use the lookup below to explore addresses within this postcode district.

SW1A
Postcode District
SW — South West London
Area
London
Region
Royal Mail PAF
Data Source
Postcode Lookup — SW1A DistrictSample
{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "SW1A 1AA",
    "quality": 1,
    "eastings": 525034,
    "northings": 223504,
    "country": "England",
    "nhs_ha": "London",
    "longitude": -0.2138,
    "latitude": 51.464,
    "european_electoral_region": "London",
    "primary_care_trust": "Chelsea",
    "region": "London",
    "lsoa": "Chelsea 001A",
    "msoa": "Chelsea 001",
    "incode": "1AA",
    "outcode": "SW1A",
    "parliamentary_constituency": "Chelsea",
    "admin_district": "Chelsea",
    "parish": "Chelsea, unparished area",
    "admin_county": null,
    "admin_ward": "Chelsea Central",
    "ced": null,
    "ccg": "NHS London",
    "nuts": "Chelsea",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E99999999",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the SW1A Postcode District

The SW1A postcode district is part of the South West London (SW) postcode area, covering Chelsea and surrounding areas in London, England.

Postcodes in the SW1A district follow the format SW1A nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider South West London postcode area (SW) also covers: Pimlico, Westminster, Battersea, Clapham, Brixton, Tooting, Wimbledon.

Frequently Asked Questions

What area does the SW1A postcode cover?

The SW1A postcode district covers Chelsea in South West London, London, England. It is one of 0 districts in the SW postcode area.

How do I look up all addresses in the SW1A postcode?

Use the live lookup widget above or call the APITier Postcode Lookup API: GET https://postcode.apitier.com/v1/postcodes/{full postcode}?x-api-key=YOUR_KEY. Replace {full postcode} with any complete postcode beginning SW1A. The API returns all Royal Mail PAF addresses as structured JSON.

Is SW1A a valid UK postcode district?

Yes. SW1A is a Royal Mail postcode district in South West London, England. Full UK postcodes in this district follow the format SW1A followed by a digit and two letters (e.g. SW1A 1AA).

Need SW1A addresses in your app?
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