Lewisham · SE26

Gas safety certificate in SE26 (Sydenham)? We'll point you the right way.

Covering Sydenham, Crystal Palace, including Beckenham Town & Copers Cope, Bellingham, Dulwich Wood. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in SE26 (Sydenham)

No gas safety engineer listed for SE26 (Sydenham) yet. Tell us what you need and we'll find you a registered gas safety engineer, free.

Request a gas safety certificate in SE26 (Sydenham)

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

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SE26 (Sydenham) in a nutshell

SE26 covers Sydenham, Crystal Palace, in Bromley and Lewisham and Southwark. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SE26

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Two councils in one district

SE26 is split between Bromley and Lewisham and Southwark. 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

SE26 stretches across Beckenham Town & Copers Cope, Bellingham, Dulwich Wood and more, so give your full postcode, not just 'SE26', when you ask for quotes.

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

Lots of old SE26 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 629 of 1,051 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 Lewisham page. Always double-check on GOV.UK.

Next door to SE26

SE23 · Forest HillSE20 · AnerleySE19 · Upper NorwoodSE21 · DulwichSE22 · East DulwichBR3 · Beckenham

← Gas safety (CP12) across Lewisham · all areas

Frequently asked questions

Which areas does SE26 cover?

SE26 (Sydenham, Crystal Palace) includes the wards of Beckenham Town & Copers Cope, Bellingham, Dulwich Wood, Forest Hill, Penge & Cator, Perry Vale, Sydenham (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SE26?

Neighbouring districts include SE23 (Forest Hill), SE20 (Anerley), SE19 (Upper Norwood), SE21 (Dulwich), SE22 (East Dulwich) (ONS Postcode Directory via Doogal). A pro covering SE26 may well cover these too, so it's worth asking.

How many homes are in SE26?

About 12,605 households and 28,561 residents at the 2011 Census, across 629 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SE26 in?

SE26 sits in Bromley, Lewisham, Southwark (postcodes.io). Parliamentary constituency: Beckenham and Penge, Dulwich and West Norwood, Lewisham East, Lewisham West and East Dulwich.

📊 The numbers behind this page
Postcode district
SE26 1
Areas covered
Sydenham, Crystal Palace 2
Active postcodes
629 3
Households (2011 Census, via Doogal)
12,605 2
Population (2011 Census, via Doogal)
28,561 2
Electoral wards
Beckenham Town & Copers Cope, Bellingham, Dulwich Wood, Forest Hill, Penge & Cator, Perry Vale, Sydenham 4
Parliamentary constituencies
Beckenham and Penge, Dulwich and West Norwood, Lewisham East, Lewisham West and East Dulwich 4
Local authority
Bromley, Lewisham, Southwark 4
Households heated by mains gas only (Lewisham built-up area)
71.5% 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.