Grimsby · DN31

Plumbing compliance check in DN31 (Grimsby)? We'll point you the right way.

Covering Grimsby, including East Marsh, Freshney, Immingham. Find plumbers nearby.

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DN31 (Grimsby) in a nutshell

DN31 covers Grimsby, in North East Lincolnshire. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for DN31

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North East Lincolnshire council area

DN31 is in North East Lincolnshire'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

DN31 stretches across East Marsh, Freshney, Immingham and more, so give your full postcode, not just 'DN31', when you ask for quotes.

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

Lots of old DN31 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 458 of 1,004 postcodes active
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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).

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

Next door to DN31

DN32 · GrimsbyDN34 · GrimsbyDN33 · GrimsbyDN35 · CleethorpesDN37 · Ashby-cum-FenbyDN36 · Holton le Clay

← Plumbing & water compliance across Grimsby · all areas

Frequently asked questions

Which areas does DN31 cover?

DN31 (Grimsby) includes the wards of East Marsh, Freshney, Immingham, Park, Sidney Sussex, West Marsh, Wolds, Yarborough (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to DN31?

Neighbouring districts include DN32 (Grimsby), DN34 (Grimsby), DN33 (Grimsby), DN35 (Cleethorpes), DN37 (Ashby-cum-Fenby) (ONS Postcode Directory via Doogal). A pro covering DN31 may well cover these too, so it's worth asking.

How many homes are in DN31?

About 4,551 households and 9,600 residents at the 2011 Census, across 458 active postcodes (Doogal / ONS Postcode Directory).

Which council area is DN31 in?

DN31 sits in North East Lincolnshire (postcodes.io). Parliamentary constituency: Brigg and Immingham, Great Grimsby and Cleethorpes.

📊 The numbers behind this page
Postcode district
DN31 1
Areas covered
Grimsby 2
Active postcodes
458 3
Households (2011 Census, via Doogal)
4,551 2
Population (2011 Census, via Doogal)
9,600 2
Electoral wards
East Marsh, Freshney, Immingham, Park, Sidney Sussex, West Marsh, Wolds, Yarborough 4
Parliamentary constituencies
Brigg and Immingham, Great Grimsby and Cleethorpes 4
Local authority
North East Lincolnshire 4
Households in converted/shared houses (Grimsby built-up area)
2.6% 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.