Kensington and Chelsea · SW1W

Plumbing compliance check in SW1W (Belgravia)? We'll point you the right way.

Covering Belgravia, including Knightsbridge & Belgravia, Nine Elms, Pimlico North. Find plumbers nearby.

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SW1W (Belgravia) in a nutshell

SW1W covers Belgravia, in Kensington and Chelsea and Wandsworth and Westminster. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SW1W

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Two councils in one district

SW1W is split between Kensington and Chelsea and Wandsworth and Westminster. Some councils run their own landlord licensing, so check which one your home is in.

Where's this from?postcodes.io (ONSPD) local authority
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Give your full postcode

SW1W stretches across Knightsbridge & Belgravia, Nine Elms, Pimlico North and more, so give your full postcode, not just 'SW1W', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Postcodes change here

Lots of old SW1W postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 343 of 815 postcodes active
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New to plumbing compliance checks? Here's what to expect, how to get ready and what it costs, in plain English. Read the quick guide →

England landlord rules: quick version

  • No single certificate: but keep water, heating and sanitation in repair.
  • Legionella: assess the risk for each let.
  • CO alarms: needed where there's a fixed combustion appliance (not gas cookers).

More detail on the Kensington and Chelsea page. Always double-check on GOV.UK.

Next door to SW1W

SW1X · BelgraviaSW1V · Vauxhall BridgeSW1E · Buckingham GateW1J · Mayfair – southSW1H · Buckingham GateSW1P · Victoria Station

← Plumbing & water compliance across Kensington and Chelsea · all areas

Frequently asked questions

Which areas does SW1W cover?

SW1W (Belgravia) includes the wards of Knightsbridge & Belgravia, Nine Elms, Pimlico North, Royal Hospital, St James's (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SW1W?

Neighbouring districts include SW1X (Belgravia), SW1V (Vauxhall Bridge), SW1E (Buckingham Gate), W1J (Mayfair – south), SW1H (Buckingham Gate) (ONS Postcode Directory via Doogal). A pro covering SW1W may well cover these too, so it's worth asking.

How many homes are in SW1W?

About 4,164 households and 8,123 residents at the 2011 Census, across 343 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SW1W in?

SW1W sits in Kensington and Chelsea, Wandsworth, Westminster (postcodes.io). Parliamentary constituency: Battersea, Chelsea and Fulham, Cities of London and Westminster.

📊 The numbers behind this page
Postcode district
SW1W 1
Areas covered
Belgravia 2
Active postcodes
343 3
Households (2011 Census, via Doogal)
4,164 2
Population (2011 Census, via Doogal)
8,123 2
Electoral wards
Knightsbridge & Belgravia, Nine Elms, Pimlico North, Royal Hospital, St James's 4
Parliamentary constituencies
Battersea, Chelsea and Fulham, Cities of London and Westminster 4
Local authority
Kensington and Chelsea, Wandsworth, Westminster 4
Households in converted/shared houses (Kensington and Chelsea built-up area)
23.5% 5
  1. ONS Postcode Directory
  2. Doogal
  3. Doogal / ONSPD
  4. postcodes.io
  5. ONS Census 2021

Made with open data. See where it all comes from. Updated 26 October 2026.