Lewisham · SE20

Gas safety certificate in SE20 (Anerley)? We'll point you the right way.

Covering Anerley, Crystal Palace, Penge, Beckenham, including Clock House, Crystal Palace & Anerley, Penge & Cator. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in SE20 (Anerley)

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Request a gas safety certificate in SE20 (Anerley)

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

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SE20 (Anerley) in a nutshell

SE20 covers Anerley, Crystal Palace, Penge, Beckenham, in Bromley. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for SE20

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Bromley council area

SE20 is in Bromley's area. Some councils run their own landlord licensing, so it's worth checking theirs.

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

SE20 stretches across Clock House, Crystal Palace & Anerley, Penge & Cator, so give your full postcode, not just 'SE20', when you ask for quotes.

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

Lots of old SE20 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 484 of 808 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 SE20

SE26 · SydenhamSE19 · Upper NorwoodSE25 · South NorwoodSE23 · Forest HillBR3 · BeckenhamSE21 · Dulwich

← Gas safety (CP12) across Lewisham · all areas

Frequently asked questions

Which areas does SE20 cover?

SE20 (Anerley, Crystal Palace, Penge, Beckenham) includes the wards of Clock House, Crystal Palace & Anerley, Penge & Cator (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to SE20?

Neighbouring districts include SE26 (Sydenham), SE19 (Upper Norwood), SE25 (South Norwood), SE23 (Forest Hill), BR3 (Beckenham) (ONS Postcode Directory via Doogal). A pro covering SE20 may well cover these too, so it's worth asking.

How many homes are in SE20?

About 10,461 households and 22,821 residents at the 2011 Census, across 484 active postcodes (Doogal / ONS Postcode Directory).

Which council area is SE20 in?

SE20 sits in Bromley (postcodes.io). Parliamentary constituency: Beckenham and Penge.

📊 The numbers behind this page
Postcode district
SE20 1
Areas covered
Anerley, Crystal Palace, Penge, Beckenham 2
Active postcodes
484 3
Households (2011 Census, via Doogal)
10,461 2
Population (2011 Census, via Doogal)
22,821 2
Electoral wards
Clock House, Crystal Palace & Anerley, Penge & Cator 4
Parliamentary constituencies
Beckenham and Penge 4
Local authority
Bromley 4
Households heated by mains gas only (Bromley council area)
82.2% 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.