Billericay · CM11

Plumbing compliance check in CM11 (Billericay – East)? We'll point you the right way.

Covering Billericay – East, Great Burstead, including Billericay East, Burstead, Castledon & Crouch. Find plumbers nearby.

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CM11 (Billericay – East) in a nutshell

CM11 covers Billericay – East, Great Burstead, in Basildon and Chelmsford. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for CM11

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Two councils in one district

CM11 is split between Basildon and Chelmsford. 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

CM11 stretches across Billericay East, Burstead, Castledon & Crouch and more, so give your full postcode, not just 'CM11', when you ask for quotes.

Where's this from?postcodes.io (ONSPD) wards
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Own your home? This is for you too.

It's not just for landlords. Homeowners and buyers use these checks for peace of mind too.

Where's this from?ONS Census 2021, Billericay: 81.4% owner-occupied
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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).

Always double-check on GOV.UK.

Next door to CM11

CM12 · Billericay – WestSS15 · LaindonSS16 · Langdon HillsSS14 · BasildonSS12 · WickfordSS11 · Wickford

all areas

Frequently asked questions

Which areas does CM11 cover?

CM11 (Billericay – East, Great Burstead) includes the wards of Billericay East, Burstead, Castledon & Crouch, South Hanningfield, Stock and Margaretting (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to CM11?

Neighbouring districts include CM12 (Billericay – West), SS15 (Laindon), SS16 (Langdon Hills), SS14 (Basildon), SS12 (Wickford) (ONS Postcode Directory via Doogal). A pro covering CM11 may well cover these too, so it's worth asking.

How many homes are in CM11?

About 7,539 households and 19,283 residents at the 2011 Census, across 453 active postcodes (Doogal / ONS Postcode Directory).

Which council area is CM11 in?

CM11 sits in Basildon, Chelmsford (postcodes.io). Parliamentary constituency: Basildon and Billericay, Maldon.

📊 The numbers behind this page
Postcode district
CM11 1
Areas covered
Billericay – East, Great Burstead 2
Active postcodes
453 3
Households (2011 Census, via Doogal)
7,539 2
Population (2011 Census, via Doogal)
19,283 2
Electoral wards
Billericay East, Burstead, Castledon & Crouch, South Hanningfield, Stock and Margaretting 4
Parliamentary constituencies
Basildon and Billericay, Maldon 4
Local authority
Basildon, Chelmsford 4
Households in converted/shared houses (Billericay built-up area)
0.5% 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.