Southwick, West Sussex · BN42

Gas safety certificate in BN42 (Southwick)? We'll point you the right way.

Covering Southwick, including Eastbrook, Hillside, Southwick Green. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in BN42 (Southwick)

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Request a gas safety certificate in BN42 (Southwick)

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BN42 (Southwick) in a nutshell

BN42 covers Southwick, in Adur and Brighton and Hove. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for BN42

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Two councils in one district

BN42 is split between Adur and Brighton and Hove. 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

BN42 stretches across Eastbrook, Hillside, Southwick Green and more, so give your full postcode, not just 'BN42', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Mostly mains gas round here

Most homes in Southwick, West Sussex run on mains gas, so a standard boiler-and-hob check is what most people need.

Where's this from?ONS Census 2021, Southwick, West Sussex: 85.2% mains gas only
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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.

Always double-check on GOV.UK.

Next door to BN42

BN41 · FishersgateBN43 · Shoreham-by-SeaBN3 · HoveBN1 · BrightonBN15 · LancingBN45 · Poynings

all areas

Frequently asked questions

Which areas does BN42 cover?

BN42 (Southwick) includes the wards of Eastbrook, Hillside, Southwick Green, Wish (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to BN42?

Neighbouring districts include BN41 (Fishersgate), BN43 (Shoreham-by-Sea), BN3 (Hove) (ONS Postcode Directory via Doogal). A pro covering BN42 may well cover these too, so it's worth asking.

How many homes are in BN42?

About 4,312 households and 10,201 residents at the 2011 Census, across 219 active postcodes (Doogal / ONS Postcode Directory).

Which council area is BN42 in?

BN42 sits in Adur, Brighton and Hove (postcodes.io). Parliamentary constituency: East Worthing and Shoreham, Hove and Portslade.

📊 The numbers behind this page
Postcode district
BN42 1
Areas covered
Southwick 2
Active postcodes
219 3
Households (2011 Census, via Doogal)
4,312 2
Population (2011 Census, via Doogal)
10,201 2
Electoral wards
Eastbrook, Hillside, Southwick Green, Wish 4
Parliamentary constituencies
East Worthing and Shoreham, Hove and Portslade 4
Local authority
Adur, Brighton and Hove 4
Households heated by mains gas only (Southwick, West Sussex built-up area)
85.2% 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.