Wandsworth · SW4

Gas safety certificate in SW4 (Clapham)? We'll point you the right way.

Covering Clapham, Stockwell, including Balham, Brixton Acre Lane, Clapham Common & Abbeville. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in SW4 (Clapham)

No gas safety engineer listed for SW4 (Clapham) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.

Request a gas safety certificate in SW4 (Clapham)

How to check a gas safety engineer is registered: see the Wandsworth page.

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SW4 (Clapham) in a nutshell

SW4 covers Clapham, Stockwell, in Lambeth and Wandsworth. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SW4

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Two councils in one district

SW4 is split between Lambeth and Wandsworth. 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

SW4 stretches across Balham, Brixton Acre Lane, Clapham Common & Abbeville and more, so give your full postcode, not just 'SW4', when you ask for quotes.

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

Lots of old SW4 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 932 of 1,580 postcodes active
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New to gas safety certificates? 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

  • Every year: a check by a Gas Safe registered engineer.
  • Within 28 days: give your tenants a copy (new tenants get it before they move in).
  • Keep it: hang on to records for at least 2 years.

More detail on the Wandsworth page. Always double-check on GOV.UK.

Next door to SW4

SW8 · South LambethSW2 · BrixtonSW12 · BalhamSW1P · Victoria StationSW9 · StockwellSW1V · Vauxhall Bridge

← Gas safety (CP12) across Wandsworth · all areas

Frequently asked questions

Which areas does SW4 cover?

SW4 (Clapham, Stockwell) includes the wards of Balham, Brixton Acre Lane, Clapham Common & Abbeville, Clapham East, Clapham Park, Clapham Town, Lavender, Northcote, Stockwell West & Larkhall (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SW4?

Neighbouring districts include SW8 (South Lambeth), SW2 (Brixton), SW12 (Balham), SW1P (Victoria Station) (ONS Postcode Directory via Doogal). A pro covering SW4 may well cover these too, so it's worth asking.

How many homes are in SW4?

About 17,438 households and 40,539 residents at the 2011 Census, across 932 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SW4 in?

SW4 sits in Lambeth, Wandsworth (postcodes.io). Parliamentary constituency: Battersea, Clapham and Brixton Hill, Vauxhall and Camberwell Green.

📊 The numbers behind this page
Postcode district
SW4 1
Areas covered
Clapham, Stockwell 2
Active postcodes
932 3
Households (2011 Census, via Doogal)
17,438 2
Population (2011 Census, via Doogal)
40,539 2
Electoral wards
Balham, Brixton Acre Lane, Clapham Common & Abbeville, Clapham East, Clapham Park, Clapham Town, Lavender, Northcote … 4
Parliamentary constituencies
Battersea, Clapham and Brixton Hill, Vauxhall and Camberwell Green 4
Local authority
Lambeth, Wandsworth 4
Households heated by mains gas only (Wandsworth built-up area)
69.6% 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.