Portsmouth · PO1

Gas safety certificate in PO1 (Portsmouth)? We'll point you the right way.

Covering Portsmouth, Fratton, including Charles Dickens, Nelson, St Thomas. Find Gas Safe registered engineers nearby.

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Request a gas safety certificate in PO1 (Portsmouth)

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Request a gas safety certificate in PO1 (Portsmouth)

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

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PO1 (Portsmouth) in a nutshell

PO1 covers Portsmouth, Fratton, in Portsmouth. Give your full postcode when you ask for quotes, so the pro can confirm they cover your street.

Local tips for PO1

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Portsmouth council area

PO1 is in Portsmouth'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

PO1 stretches across Charles Dickens, Fratton, Nelson and more, so give your full postcode, not just 'PO1', when you ask for quotes.

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

Lots of old PO1 postcodes have been retired. If an old letter shows a different postcode, use your current one.

Where's this from?Doogal/ONSPD: 911 of 1,655 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 Portsmouth page. Always double-check on GOV.UK.

Next door to PO1

PO5 · SouthseaPO2 · PortsmouthPO4 · SouthseaPO3 · PortsmouthPO12 · GosportPO6 · Cosham

← Gas safety (CP12) across Portsmouth · all areas

Frequently asked questions

Which areas does PO1 cover?

PO1 (Portsmouth, Fratton) includes the wards of Charles Dickens, Fratton, Nelson, St Thomas (ONS Postcode Directory via postcodes.io).

Which postcode districts are next to PO1?

Neighbouring districts include PO5 (Southsea), PO2 (Portsmouth), PO4 (Southsea), PO3 (Portsmouth), PO12 (Gosport) (ONS Postcode Directory via Doogal). A pro covering PO1 may well cover these too, so it's worth asking.

How many homes are in PO1?

About 12,578 households and 29,125 residents at the 2011 Census, across 911 active postcodes (Doogal / ONS Postcode Directory).

Which council area is PO1 in?

PO1 sits in Portsmouth (postcodes.io). Parliamentary constituency: Portsmouth North, Portsmouth South.

📊 The numbers behind this page
Postcode district
PO1 1
Areas covered
Portsmouth, Fratton 2
Active postcodes
911 3
Households (2011 Census, via Doogal)
12,578 2
Population (2011 Census, via Doogal)
29,125 2
Electoral wards
Charles Dickens, Fratton, Nelson, St Thomas 4
Parliamentary constituencies
Portsmouth North, Portsmouth South 4
Local authority
Portsmouth 4
Households heated by mains gas only (Portsmouth built-up area)
76.4% 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.